Chemistry : General Knowledge Questions and Answers

Q11. Which of the following is NOT a compound?

[A] Milk

[B] Chalk

[C] Ammonia

[D] Sodiumchloride

Q12. The enzyme that converts glucose to ethyl alcohol is

[A] Invertase

[B] Maltase

[C] Diastase

[D] Zymase

Q13. What is the molecular formula of Butyne?

[A] c4H10

[B] c2H2

[C] c3H4

[D] c4H6

Q14. When formaldehyde and potassium hydroxide are heated , we get

[A] Ethyl formate

[B] Methane

[C] Acetylene

[D] Methyl alcohol

500+ Chemistry Quiz Questions and Answers

Q15. Which of the following is an Amorphous solid?

[A] Graphite

[B] Quartz Glass(Sio2)

[C] Chrome Alum

[D] Silicon Carbide(SiC)

Q16. Among the given nutrients, milk is a poor source of

[A] Vitamin C

[B] Carbohydrates

[C] Protein

[D] Calcium

Q17. Name the Scientist who stated that matter can be converted into energy

[A] Einstein

[B] Avogadro

[C] Lavoisier

[D] Boyle

Q18. A ‘breath test’ used by traffic police to check drunken driving uses _________?

[A] Silica gel coated with silver nitrate

[B] Potassium dichromatic-sulphuric acid

[C] Turmeric on filter paper

[D] potassium permanganate-sulphuric acid

Q19. The maximum number of electrons that can be accommodated in a shell depends on the formula

[A] 2n2

[B] n2

[C] 3n2

[D] 1n2

Q20. Brass gets discoloured in air because of the presence of which of the following gases in air ?

[A] Nitrogen

[B] Carbon dioxide

[C] Hydrogen sulphide

[D] Oxygen