Commonly used glass is known as the _______________ glass?
Commonly used glass is known as the _______________ glass?
A. Flint
B. Hard
C. Pyrex
D. Soda
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Oils and fats are converted to soap in a process called _________________?
Oils and fats are converted to soap in a process called _________________?A. Hydrogenation
B. Esterification
C. Saponification
D. None of theseThe temperature in the calcium carbide furnace is _______________ °C ?
The temperature in the calcium carbide furnace is _______________ °C ?A. 200-300
B. 700-850
C. 2000-2200
D. 4000-4500Calcination of gypsum produces__________________?
Calcination of gypsum produces__________________?A. Plaster of Paris
B. Salt cake
C. Nitre cake
D. Lime__________ are used as corrosion inhibitor for iron & steel in aqueous solutions.
Question: __________ are used as corrosion inhibitor for iron & steel in aqueous solutions.
[A].Phosphates [B].
Chromates [C].
Sulphates [D].
Bi-carbonates Answer: Option B
Explanation:
No answer description available for this question.
_________________ is not a constituent of gun powder?
_________________ is not a constituent of gun powder?A. Carbon
B. Charcoal
C. Sulphur
D. Potassium nitrateMaleic anhydride is produced by catalytic oxidation of____________________?
Maleic anhydride is produced by catalytic oxidation of____________________?A. Toluene
B. Ethyl alcohol
C. Naphthalene
D. Benzene