Which of the following coals has the highest calorific value ?
Which of the following coals has the highest calorific value ?
A. Lignite
B. Sub-bituminous
C. Anthracite
D. Peat
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__________ is used as a catalyst in fat splitting.
Question: __________ is used as a catalyst in fat splitting.
[A].ZnO [B].
Ni [C].
V2O5 [D].
FeO Answer: Option A
Explanation:
No answer description available for this question.
Permanent hardness of water can be removed by
Question: Permanent hardness of water can be removed by
[A].simply boiling. [B].
adding alum. [C].
passing it through cation & anion exchangers. [D].
all (a), (b) and (c). Answer: Option C
Explanation:
No answer description available for this question.
Enzymes are organic catalysts used in the ____________________ reactions ?
Enzymes are organic catalysts used in the ____________________ reactions ?A. Chemical
B. Biochemical
C. Photochemical
D. ElectrochemicalMetallic soap is ________________ salt of fatty acids ?
Metallic soap is ________________ salt of fatty acids ?A. Sodium
B. Potassium
C. Both sodium & potassium
D. Aluminium or calciumGypsum is chemically
Question: Gypsum is chemically
[A].calcium chloride [B].
potassium sulphate [C].
sodium sulphate [D].
calcium sulphate Answer: Option D
Explanation:
No answer description available for this question.
__________ of rubber decreases after its vulcanisation.
Question: __________ of rubber decreases after its vulcanisation.
[A].Resistance to the action of organic solvent [B].
Tackiness [C].
Maximum service temperature [D].
Tensile strength Answer: Option B
Explanation:
No answer description available for this question.