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] 4n
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