Sulphuric acid is mainly used in the _______________ industry ?
Sulphuric acid is mainly used in the _______________ industry ?
A. Fertiliser
B. Steel
C. Paper
D. Paint
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BHC (Benzene hexachloride) is made by the chlorination of benzene_____________________?
BHC (Benzene hexachloride) is made by the chlorination of benzene_____________________?A. Which is an addition reaction
B. Which is a substitution reaction
C. In absolute dark
D. In presence of sunlightEnzymes are organic catalysts used in the __________ reactions.
Question: Enzymes are organic catalysts used in the __________ reactions.
[A].chemical [B].
biochemical [C].
photochemical [D].
electrochemical Answer: Option B
Explanation:
No answer description available for this question.
Essential oils are usually obtained using
Question: Essential oils are usually obtained using
[A].steam distillation [B].
extractive distillation [C].
solvent extraction [D].
leaching Answer: Option D
Explanation:
No answer description available for this question.
Separation of fresh water from sea water can be done by the _______________ operation ?
Separation of fresh water from sea water can be done by the _______________ operation ?A. Osmosis
B. Reverse osmosis
C. Absorption
D. AdsorptionBasic oxide is absent in ___________________ glass?
Basic oxide is absent in ___________________ glass?A. Flint
B. Pyrex
C. Quartz
D. All A, B. & CZeolite is used in the ____________________ ?
Zeolite is used in the ____________________ ?A. Water treatment
B. Glass manufacture
C. Hydrogenation of fatty oil as a catalyst
D. Development of exposed photographic plate