651. What is the name of the compound CH3-CH2-OH?
a) Methanol
b) Ethanol
c) Propanol
d) Butanol
652. Which type of bond is present in organic compounds?
a) Covalent bond
b) Ionic bond
c) Metallic bond
d) Hydrogen bond
653. The functional group present in carboxylic acids is:
a) -OH (hydroxyl)
b) -COOH (carboxyl)
c) -NH2 (amino)
d) -CHO (aldehyde)
654. What is the name of the compound CH3-CH2-CH2-CH2-CH3?
a) Methane
b) Ethane
c) Propane
d) Pentane
655. The process of breaking down complex organic compounds into simpler ones is called:
a) Condensation
b) Hydrolysis
c) Esterification
d) Sublimation
656. Tyndall effect is not observed in which of the following?
A. Emulsions
B. Gold Solution
C. Sugar Solution
D. Suspensions
657. Which among the following is homogeneous?
A. A solution
B. An emulsion
C. A suspension
D. None of the above
658. If the salt bridge is not used between two half-cell then the voltage?
A. Decrease slowly
B. Decrease rapidly
C. Does not change
D. Drops to zero
659. Oxidation number of S in H2S2O7 is:
A. +2
B. +4
C. +6
D. 14
660. Which of the following is not a colligative property?
A. Elevation in B.P
B. Boiling point of solution
C. Lowering of vapour pressure
D. Depression in freezing point
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