___________________ iron is the purest form of iron?
___________________ iron is the purest form of iron?
A. Cast
B. Wrought
C. Pig
D. High silicon
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Zeolite used in water softening process (cation exchange) is regenerated by washing with___________________?
Zeolite used in water softening process (cation exchange) is regenerated by washing with___________________?A. Brine
B. Chloramines
C. Sodium bisulphite
D. Liquid chlorinesWhich of the following, when pyrolysed, produces perchloro-ethylene ?
Question: Which of the following, when pyrolysed, produces perchloro-ethylene ?
[A].Ethylene dichloride [B].
Chlorobenzene [C].
Carbon tetrachloride [D].
Chlorinated paraffin Answer: Option C
Explanation:
No answer description available for this question.
Hydrolysis of sugar is called_____________________?
Hydrolysis of sugar is called_____________________?A. Hydration
B. Inversion
C. Esterification
D. None of these________________ acid is the main constituent of cotton seed oil ?
________________ acid is the main constituent of cotton seed oil ?A. Acetic
B. Linoleic
C. Palmitic
D. OleicManufacture of phthalic anhydride uses __________ as a catalyst.
Question: Manufacture of phthalic anhydride uses __________ as a catalyst.
[A].Ni [B].
Cr [C].
V2O5 [D].
Al2O3 Answer: Option C
Explanation:
No answer description available for this question.
______________ Nature of hypo (sodium thiosulphate) makes it useful in photography ?
______________ Nature of hypo (sodium thiosulphate) makes it useful in photography ?A. Oxidising
B. Reducing
C. Complex forming
D. Photochemical