Top 1000+ Solved Chemistry MCQ Questions Answer
Q. A body moving in a circular path with a constant speed has a -
a. constant velocity
b. constant acceleration
c. constant kinetic energy
d. constant displacement
Q. is a multibranched polysaccharide of glucose that serves as a form of energy storage in animals and fungi.
a. Cellulose
b. Glycogen
c. Pectin
d. Chitin
Q. Potassium Permanganate is used for purifying drinking water, because -
a. it dissolves the impurities of water
b. It is a sterilizing agent
c. It is an oxidising agent
d. It is a reducing agent
Q. Diamond is harder than graphite because of –
a. difference in layers of atoms
b. tetrahedral structure of diamond
c. difference of crystalline structures
d. None of these
Q. What is the most commonly used substance in fluorescent tubes?
a. Sodium oxide and argon
b. Sodium vapour and neon
c. Mercury vapour and argon
d. Mercury oxide and neon
Q. For respiration in deep sea, divers use mixture of:
a. Oxygen and helium
b. Oxygen and hydrogen
c. Oxygen and carbon dioxide
d. Oxygen, Helium & nitrogen
Q. The minimum temperature at which a combustible substance catches fire is called:
a. fireless temperature
b. ignition temperature
c. static temperature
d. optimum temperature
Q. Consider the following statements regarding Graphene and Fullerene:1. Graphene is 2 dimensional , Fullerene is generally 3 dimensional2. Graphene is SP2 allotrope of Carbon, while Fullerene is SP3 allotrope of Carbon3. Graphene does not dissolve in petrol but fullerenes dissolveWhich among the above statements is / are correct?
a. Only 1 is correct
b. Only 2 is correct
c. Only 3 is correct
d. 1 & 3 are correct
Q. Haber Process is used to produce which among the following?
a. Potash
b. Ammonia
c. Urea
d. Nitrates
Q. If a Hydrogen atom is removed from a hydrocarbon of Benzene group, the remaining residue is called _________?
a. Alkyl
b. Aryl
c. Arene
d. Azene
Q. Which among the following kinds of Chemical reactions cause the rocks turn red oryellowish?
a. Hydration
b. Oxidation
c. Carbonation
d. Exfoliation
Q. Which among the following is the unit of the scale used for measurement of the spicy heat of a chili pepper?
a. Smith
b. Wright
c. Orville
d. Scoville