Chemistry is the branch of science concerned with the substances of which matter is composed, the investigation of their properties and reactions, and the use of such reactions to form new substances. It is the scientific discipline involved with compounds composed of atoms, i.e. elements, and molecules, i.e. combinations of atoms: their composition, structure, properties, behavior and the changes they undergo during a reaction with other compounds.
1. Which one is not the form of Biocides?
A. Salt
B. Iodine
C. Sugar
D. Bleech
Ans: D
2. How biocides work?
A. Control the multiplication of insects
B. Kill the insects
C. Manage the original form of material
D. Control the bacteria
Ans: D
3. What is Rodenticide?
A. A medicine to kill worms
B. A medicine to kill animals
C. A lubricant
D. A pesticide
Ans: D
4. Most commonly used Rodenticides are _______ in nature.
A. Anti pesticides
B. Anti solvent
C. Anti Coagulant
D. Non anti coagulant
Ans: C
5. Which acid is present in lemon?
A. marlic acid
B. citric acid
C. lactic acid
D. tartaric acid
Ans: B
GK Questions and Answers on Modern-day Technology
6. Natural rubber is a ________ which is having high elasticity.
A. Substance
B. Material
C. Elastomer
D. Chemical using carbon as main compound
Ans: C
7. How will you define the process of Vulcanization?
A. Sample of butane mixed with sulphur and litharge
B. Sample of propane mixed with sulphur and litharge
C. Sample of plastic formed carbon mixed with sulphur and litharge
D. Sample of rubber mixed with sulphur and litharge
Ans: D
8. What is NBR?
A. Normal Acrylonitrile-butadiene rubber
B. Natural Acrylonitrile-butadiene rubber
C. N Acrylonitrile-butane rubber
D. Acrylonitrile-butadiene rubber
Ans: D
9. A synthetic rubber is having__________weight.
A. Higher resistance
B. Lower density
C. Higher molecular
D. Higher atomic
Ans: C
10. Which of the following is not a type of elements?
A. Metals
B. Non Metals
C. Metalloids
D. Gases
Ans: D
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