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Science Quiz Part14

Science Quiz on Measuring Devices

Science Quiz by www.ChemistryNotesInfo.com
Science Quiz
This Science Quiz part14 is based on different measuring devices or measuring instruments used in the field of Science.

1. Distance traveled, displacement is measured by:

Taxmeter
Taximeter
Distancemeter
Displacementmeter


2. Surface tension of the liquid is measured by:

Tacheometer
Tintometer
Tensiometer
Tachometer


3. Temperature is measured by:

Thermometer
Thermusmeter
Hygrometer
Hydrometer


4. Ultraviolet light is measured by:

EW Meter
Electromagnetic Wave Meter
UV Meter
VU Meter


5. Very low pressure is measured by:

Pressure Meter
Voltmeter
Viscometer
Vacuum Gauge


6. Viscosity of a fluid is measured by:

Viscosity Meter
Viscometer
Ostwald Viscometer Principle
Viscosity Measurement Devices


7. Electric potential, voltage is measured by:

Voltmeter
Digital DC Voltmeter
Analog Panel Voltmeter
Ammeter


8. Electrical power is measured by:

Ammeter
Wattmeter
Voltmeter
Voltage Meter


9. Wind direction is measured by:
Quiz of Science MCQs

Wind Vane
Weather Vane
Wind Vane Scale
Wind Vane Meter


10. Fermentation is measured by:

fermentometer
Fermometer
Fermentation Meter
Zymometer



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Science Quiz Part13

Science Quiz on Measuring Devices

Science Quiz by www.ChemistryNotesInfo.com
QUIZ
This Science Quiz part13 is based on different measuring devices or measuring instruments used in the field of Science.

1. Color is measured by:

Tintometer
Color Meter
Color Identification Devices
Color Measuring Instrument


2. Speed, velocity of the vehicle is measured by:

Speed Detector
Speed Tester
Speedometer
None of the above


3. Lung capacity is measured by:

ECG Machine
Sphygmomanometers
Stethoscopes
Spirometer


4. Blood pressure is measured by:

Digital Blood Pressure Monitor
Clinical Thermometers
Glucometer
Sphygmomanometer


5. Radius of a sphere is measured by:

Ruler
Spherometer
Diameter
Scale


6. Object range is measured by:

Stadimeter
Kilometer
Milimeter
Meter


7. Seismic strain is measured by:

Science Quiz
Strainmetere
Refractometer
Seismicmeter


8. Standing wave ratio is measured by:

Radiometer
SWR Meter
Wave Ratio Meter
Electrometer


9. Distance is measured by:

Distance Meter
Laser Distance
Distance Measurement Device
Tacheometer


10. Revolutions per minute (RPM), speed of aeroplanes, rate of blood flow is measured by:

Tachometer
Tacheometer
Digital RPM Meter
RPM Meter



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Science Quiz Part12

Science Quiz on Measuring Devices

Chemistry GK by www.ChemistryNotesInfo.com
Science Quiz, Chemistry Quiz, Chemistry GK, Chemistry MCQ, Science GK, Science MCQ, SPECTROPHOTOMETER
This Science Quiz part12 is based on different measuring devices or measuring instruments used in the field of Science.

1. Intensity of the light as a function of the wavelength is measured by:

Spectrometer
Spectrophotometer
Spectroscopy
Color Spectrophotometer


2. Properties of light is measured by:

Spectrometer
Spectrophotometer
Spectroscopy
Color Spectrophotometer


3. Seismic waves (during earthquakes) is measured by:

Seismic Waves Meter
Surface Buoys
Seismometer
Underwater Sensors


4. Amount of the sugar in a solution is measured by:

Saccharometer
Sugar Meter
Glucometer
Sugar Tester


5. Length is measured by:

Ruler
Insurance
Classes
Degree


6. Response to applied forces is measured by:

Watt-hour meter
Q meter
Rheometer
Rotameter


7. Sugar concentration of the sap & syrup is measured by:

Hygrometer
RF/Microwave
Refractometer
Hydrometer


8. Radiant flux of the electromagnetic radiation is measured by:

Radiometer
Electromagnetic Radiationmeter
Audiometer
Electrometer


9. Thickness of the deposited thin films is measured by:

QC Lab Microbalance
Standard Films Microbalance
Quartz Microbalance
Quartz Crystal Microbalance


10. High temperatures is measured by:

Thermometer
Pyrometer
Hygrometer
Pyranometer



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Science Quiz Part11

Science Quiz

Chemistry GK by www.ChemistryNotesInfo.com
This Science Quiz part11 is based on different measuring devices or measuring instruments used in the field of Science.
Science Quiz

1. Osmotic strength of the solution, colloid is measured by:

Osmosisindicator
pH Meter
Osmometer
Rotameter


2. pH is measured by:

Pyrometer
pH Meter
Ohmmeter
Berometer


3. Illuminance or irradiance is measured by:

Photometer
Light Meter
Quadrat
Load Cell


4. Rotation of polarized light is measured by:

Photometer
Light Meter
Quadrat
Polarimeter


5. Voltage is measured by:

Potentiometer
Orchidometer
Ohmmeter
Ammeter


6. Surface roughness is measured by:

Mass Spectrometer
Mass Flow Meter
Nephelometer
Profilometer


7. Angles is measured by:

Hydrometer
Protractor
Scale
Inkometer


8. Humidity is measured by:

Hydrometer
Glucometer
Psychrometer
Electrometer


9. Fluid density is measured by:

Potentiometer
Pycnometer
Psychrometer
Interferometer


10. Solar radiation is measured by:

Thermometer
Rotameter
Rular
Pyranometer




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Amino Acids

Amino Acids

Definition of Amino Acid

Amino acid is a simple organic compound that contains a carboxyl (—COOH) and an amino (—NH2) group.

What are Amino Acids?

Amino acids are organic compounds containing carboxyl (—COOH) and amino (—NH2) functional group with side chain, this side chain is specific to amino acid. Carbon, Hydrogen, Oxygen and Nitrogen are some important element which present in amino acids. Some other elements may also present in side chain of some amino acids.

Importance of Amino Acids

As we all know that our body contains large amount of proteins also these proteins play important role in biological processes happening within human body. Amino acids are building blocks of these proteins means proteins contain amino acids.
Amino acids play key role in many body functions like cell structure, storage and transport of nutrients, proper functioning of organs, proper functioning of glands, proper functioning of arteries, proper functioning of tendons, healing of wounds, repairing tissues, removal of metabolic waste etc.

Amino Acids

There are so many amino acids present in nature but gene codes only 20 amino acid. Essential amino acids are type of amino acid which can not produced by human body so they are needed in dietary food. Two amino acids combines by a peptide bond to form dipeptide.
peptide bond
And amino acids further added to grow chain of peptides to form poly-peptide or protein.

Areas of use of Amino Acids

1. Anti-aging

Supply of amino acids to the body provides repair treatment means nourish human skin, nails and hair result in delay aging process naturally. Supply of amino acids strengthens connective tissue to keep our skin smooth, shine, glowing and elastic. Creatine play very important role to keep skin healthy and this creatine is made up of amino acids like Arginine and Methionine. Glutamine amino acid is responsible to regulate acid-base balance as a result it supports healthy skin. Carnitine is a di-peptide containing two essential amino acids lysine and Methionine. Carnitine helps in burning fat to produce energy so also known as fat burner so also added in fitness and wellness program.

2. Arthritis

Amino acid Methionine helps in cartilage formation, also Methionine is essential amino acid so do not get produced within human body but need to be provided from outside i.e. from diet or food. Methionine also donates sulphur which helps in joint cartilage creation. Along with amino acids vitamins and minerals are also required for healthy joints.

3. Cholesterol

Arginine amino acid helps in lowering the cholesterol level.

4. Diabetes

In diabetes person’s blood sugar level get high than normal level due to many reasons like pancreas do not produce enough insulin, insulin resistance etc. Amino acid Arginine help in reducing insulin resistance by increasing sensitivity of our body cells toward insulin so insulin get easily absorbed.

5. Fat Burning

Goal of weight loss is achieved by fat burning. Human growth hormone is an important fat burning hormone and amino acids Arginine, Glutamine and Methionine helps to secrete this hormone.

6. Hair and Nails

Amino acid Methionine prevents hair loss and strengthens nails. Amino acid Glutamine and Arginine increases hair growth.

Zwitterions

zwitterion
•    Below pH 2.2 amino acid have net charge of +1 due to the predominant form of amino acid have a neutral carboxylic acid functional group and a positive α-ammonium.
•    Above pH 9.4 amino acid have net charge of -1 due to the predominant form of amino acid have a negative carboxylate and neutral α-amino group.
•    At pH between 2.2 and 9.4 amino acid have net charge of ZERO due to the predominant form of amino acid have both a negative carboxylate and a positive α-ammonium functional group and this molecular state of amino acid is known as a Zwitterion.

Isoelectric Point

 Isoelectric point is a pH at which molecule carry zero net electric charge. In case of amino acids at pH between 2.2 and 9.4 amino acid have net electric charge of ZERO so this range of pH gives Isoelectric Point of Amino Acids as shown in below image.

List of Amino Acids

list of amino acids

Essential Amino Acids

Essential amino acids are amino acids which cannot be synthesized by the human body so these amino acids must be supplied in diet. The nine essential amino acids, which human body cannot synthesize are phenylalanine, Valine, Threonine, Tryptophan, Methionine, Leucine, Isoleucine, Lysine, and Histidine i.e. in one letter for amino acids are as follows- F, V, T, W, M, L, I, K, H.
Six additional amino acids are measured conditionally essential in the human diet. These six amino acids are Arginine, Cysteine, Glycine, Glutamine, Proline, and Tyrosine i.e. in one letter for amino acids are as follows- R, C, G, Q, P, Y.
Five amino acids are not essential in humans because they fully synthesized in the body. These five amino acids are Alanine, Aspartic Acid, Asparagine, Glutamic Acid, and Serine i.e. in one letter for amino acids are as follows- A, D, N, E, S.

List of Essential Amino Acids and Non-Essential Amino Acids

List of Essential Amino Acids and list of Non-Essential Amino Acids

Amino Acid Images





















Smartphone Chemistry

Chemistry of Smartphone

About 20 years before no one use smartphones but nowadays everyone have a smartphone. Apple iPhone 7 Plus, Google Pixel XL, Samsung Galaxy S7 Edge, LG G5, OnePlus 3, HTC 10 and Huawei Nexus 6P are examples of some popular smartphones. This article is all about chemistry behind smartphones by Chemistry Notes Info.
Smartphones Chemistry

Different Chemistry Elements in Smartphones

Typically smartphone contains many elements like Silver, Gold, Lithium, Praseodymium, Terbium, Yttrium, Gadolinium, Indium, Tin, Oxygen, Carbon, Copper, Tantalum, Silicon, Oxygen, Antimony, Arsenic, Phosphorus and Gallium.

Generally On Average a Smartphone Contains About 

  • 300 mg Silver (Ag having Atomic No. 47, Atomic Mass 107.87)
  • 30 mg Gold (Au having Atomic No. 79, Atomic Mass 196.97)
Battery- Generally smartphones have Li-Ion Battery, this battery have Lithium Cobalt Oxide as a +ve electrode and Carbon or Graphite as a -ve electrode. This -ve electrode release electrons which travel towards +ve electrode as a result provide power to your phone.
Screen- Screen contains following elements which provide color to screen to display visual content.
  •  Praseodymium (Pr having Atomic No. 59, Atomic Mass 140.91)
  • Terbium (Tb having Atomic No. 65, Atomic Mass 158.93)
  • Yttrium (Y having Atomic No. 39, Atomic Mass 88.91)
  • Gadolinium (Gd having Atomic No. 64, Atomic Mass 157.25)
 Touch- Touchscreen takes inputs from user and are transparent, all these are possible due to following elements
  • Indium (In having Atomic No. 49, Atomic Mass 114.82)
  • Tin (Sn having Atomic No. 50, Atomic Mass 118.71)
  • Oxygen (O having Atomic No. 8, Atomic Mass 16)
Wiring- Wiring or electrical circuits are made up of copper and capacitors are made up of Tantalum. Capacitor store regulate electricity and loose electrical charge in fraction of seconds.
  • Copper (Cu having Atomic No. 29, Atomic Mass 63.55)
  • Tantalum (Ta having Atomic No. 73, Atomic Mass 180.95)
Microchip- Microchip or CPU (Central Processing Unit) also called brain of smartphone is made-up of silicon, oxygen, antimony, arsenic, phosphorus and gallium. All these elements are used to produce highly conductive powerful microchips so you can play games, watch videos, click photos, use your phone camera for taking selfy, audio video recording, calling, chatting, using apps like whats app, facebook, twitter or whatsoever stuff you like to do with your smartphone is possible due to chemistry.
  • Silicon (Si having Atomic No. 14, Atomic Mass 28.09)
  • Oxygen (O having Atomic No. 8, Atomic Mass 16)
  • Antimony (Sb having Atomic No. 51, Atomic Mass 121.76)
  • Arsenic (As having Atomic No. 33, Atomic Mass 74.92)
  • Phosphorus (P having Atomic No. 15, Atomic Mass 30.97)
  • Gallium (Ga having Atomic No. 31, Atomic Mass 69.73)

What's Inside Your Smartphone

Smartphone chemistrySmartphone is made-up of different components which are assembled to make smartphones, like display (to show visual content), touchscreen (to take inputs from user), cameras (to take photos, selfy and to shoot videos), microphone (to receive audio or to record sound), case (body of phone), battery (to provide power), sim card slot (for sim), speakers (for sound, to listen music), sensors (for different purpose like ambient light sensor for light intensity means automatically set screen brightness according to surrounding light and ultimately save battery life, gyroscope and accelerometer to play video-games as these sensor tracks phone movement, digital compass to detect north direction for maps and nevigation, proximity sensor used to prevent unwanted touch commands by locking phone during phone call when you bring phone near your ear), motherboard (printed circuit board containing principal components of smartphone with connectors for other circuit boards to be slotted into), memory (to store data, movies, photos, videos, songs), transceiver (to transmit and receive communications), radio (to transmit data and to receive data), cell phone radio (that communicate with cell tower, when you make call) wifi radio (to download big files, movies songs etc and they consume less battery as they travel very less distance) bluetooth radio, NFS rado, GPS radio etc. all these components contain some chemical elements of periodic table and when all components are assembled they give you smartphone which you use daily.

Chemistry GK Part10

Science General Knowledge

Chemistry GK by www.ChemistryNotesInfo.com
This chemistry GK part10 is based on different measuring devices or measuring instruments used in chemistry and science.

Q1. Measurement of force is measured by
Load Cell

  • Load Meter
  • Mass Cell
  • Weight Cell
  • Load Cell
Ans of Chemistry GK MCQ Question Q1: Load Cell

Q2. Intensity of light is measured by

  • Lux Meter
  • Light Meter
  • Photometer
  • Disdrometer
Ans of Chemistry GK MCQ Question Q2: Lux Meter

Q3. The mass flow rate of a fluid traveling through the tube is measured by

  • Fluid Flow Meter
  • Volume Flow Meter
  • Mass flow meter
  • Volume Flow Gauge
Ans of Chemistry GK MCQ Question Q3: Mass flow meter

Q4. ______ is used in measurement of strength of magnetic fields

  • Polometer
  • Bolometer
  • Magnetometer
  • Radiometer
Ans of Chemistry GK MCQ Question Q4: Magnetometer

Q5. The masses of ions, used to identify chemical substance or chemical substances through their mass spectra is measured by

  • Optical Emission Spectrometer
  • Mass Spectrometer
  • Modular Spectrometer
  • UV-Visible Spectrometer
Ans of Chemistry GK MCQ Question Q5: Mass Spectrometer

Q6. ____ device is used to measure electrical potential, resistance, and current

  • Multimeter
  • Potentiometer
  • Digital Multimeter
  • Analog Multimeter
Ans of Chemistry GK MCQ Question Q6: Multimeter

Q7. _______ is use to measure atmospheric pressure

  • Atmosphere Barometer
  • Arab Barometer
  • Mercury Barometer
  • Air Barometer
Ans of Chemistry GK MCQ Question Q7: Mercury Barometer

Q8. Device use to measure the speed and direction of clouds

  • Nephoscope
  • Nephoscoper
  • Mirror Nephoscope
  • Nefoscope
Ans of Chemistry GK MCQ Question Q8: Nephoscope

Q9. ______ is use to measure electrical resistance

  • Chemical Resistance Meter
  • Shunt
  • Resistance Meter
  • Ohm Meter
Ans of Chemistry GK MCQ Question Q9: Ohmmeter

Q10. Oscillations is measured by

    Science Quiz
  • Oscillator
  • Vectorscope
  • Oscilloscope
  • Oscillometer
Ans of Chemistry GK MCQ Question Q10: Oscilloscope

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<= Chemistry GK Part9

Chemistry GK Part9

Chemistry MCQ

Chemistry GK by www.ChemistryNotesInfo.com
This chemistry GK part9 is based on different measuring devices or measuring instruments used in chemistry and science.

Q1. Fuel level is measured by

  • Speedometer
  • Fuel Scale
  • Fuel Meter
  • Fuel Gauge
Ans of Chemistry GK MCQ Question Q1: Fuel Gauge

Q2. Electricity is measured by
Chemistry mcq

  • Ammeter
  • Galvanometer
  • Amplifier
  • Currentmeter
Ans of Chemistry GK MCQ Question Q2: Galvanometer

Q3. Volume and density of solids is measured by

  • Dilatometer
  • Caliper
  • Densimeter
  • Gas Pycnometer
Ans of Chemistry GK MCQ Question Q3: Gas Pycnometer

Q4. ______ is used in measurement of blood glucose (diabetes)

  • Glucometer
  • Blood Glucose Monitor or Glucose Tester
  • Glucose Meter
  • Glucometer or Glucose Meter
Ans of Chemistry GK MCQ Question Q4: Glucometer and Glucose Meter

Q5. Specific gravity of liquids (density of liquids) is measured by

  • Fathometer
  • Thermometer
  • Hygrometer
  • Hydrometer
Ans of Chemistry GK MCQ Question Q5: Hydrometer

Q6. ____ device is used to measure humidity

  • Dynamometer
  • Thermometer
  • Hygrometer
  • Hydrometer
Ans of Chemistry GK MCQ Question Q6: Hygrometer

Q7. _______ is use to measure wave interference

  • Actinometer
  • Elaeometer
  • Interferometer
  • Load Cell
Ans of Chemistry GK MCQ Question Q7: Interferometer

Q8. Device use to measure composition of gases

  • Heliometer
  • Inkometer
  • Katharometer
  • Lux Meter
Ans of Chemistry GK MCQ Question Q8: Katharometer

Q9. ______ is use to measure specific gravity of milk

  • Gasometer
  • Lactometer
  • Milk Meter
  • Chemical Tester
Ans of Chemistry GK MCQ Question Q9: Lactometer

Q10. Light in photography is measured by

  • Light Meter
  • Ellipsometer
  • Photometer
  • Light detector
Ans of Chemistry GK MCQ Question Q10: Light Meter

We publish some chemistry general knowledge question-answer (Chemistry MCQs) to increase your chemical science GK.


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<= Chemistry GK Part8

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