971. ‘’All the four quantum numbers of two electrons in an atom are not the same’’ It is the law of?
A: Exclusion principle of Pauli
B: Hund’s
C: Uncertainty principle of Heisenberg
D: Avogadro’s Law
972. In which of the following states maximum iron ore is found?
A: FeCO3
B: Fe2O3
C: Fe3O4
D: FeS2
973. Which among the following is a carbohydrate?
A: Turpentine
B: Nylon
C: Cane-sugar
D: Hydrogen peroxide
974. Cement is made hard with?
A: Hydration and Dissociation of water
B: Dehydration
C: Dissociation of water
D: Polymerization
975. The organic acid that can be made from ethanol is?
A: Acetic acid
B: Formic acid
C: Butanoic acid
D: Citric acid
976. The formula of palmitic acid is?
A: C15H31COOH
B: C13H27COOH
C: C17H33COOH
D: C17H35COOH
977. The aliphatic monocarboxylic acids are obtained by the hydrolysis of?
A: Proteins and oil
B: Fats and proteins
C: Fats and oils
D: All of the above
978. An acid with an unpleasant smell is?
A: Formic acid
B: Acetic acid
C: Propionic acid
D: Butyric acid
979. Carboxylic acid on reduction with HI/phosphorus yields?
A: Alkane
B: Alcohols
C: Aldehydes
D: Ketones
980. The reaction of carboxylic acids with alcohols in the presence of cone. H2SO4 is called?
A: Esterification
B: Neutralization
C: Hydrolysis
D: Saponification
Admin