Chemical Engineering - Chemical Process

11.
Electric bulbs are made of __________ glass.
jena
flint
crookes
pyrex
Answer: Option
Explanation:
No answer description is available. Let's discuss.

12.
Which of the following is used as a binding material in soap to improve soap texture ?
Rosin
Borax
Benzyl acetate
Sodium carbonate
Answer: Option
Explanation:
No answer description is available. Let's discuss.

13.
An alkali metal salt of palmitic acid is known as
soap
metallic soap
detergent
alkaloid
Answer: Option
Explanation:
No answer description is available. Let's discuss.

14.
Washing soda is chemically represented by
Na2CO3
Na2CO3.H2O
Na2CO3.10H2O
NaHCO3
Answer: Option
Explanation:
No answer description is available. Let's discuss.

15.
Magnesium and calcium __________ cause temporary hardness of water.
carbonates
bicarbonates
phosphates
sulphates
Answer: Option
Explanation:
No answer description is available. Let's discuss.