GROWTH AND NUTRITION OF BACTERIA QUESTIONS

1.

Brass gets discoloured in air because of the presence of which of the following gases in air?
A.     Oxygen
B.     Hydrogen sulphide
C.     Carbon dioxide
D.     Nitrogen
Answer & Explanation

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.
View Answer Workspace Report Discuss in Forum
2.

Which of the following is a non metal that remains liquid at room temperature?
A.     Phosphorous    B.     Bromine
C.     Chlorine    D.     Helium
Answer & Explanation

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.
View Answer Workspace Report Discuss in Forum
3.

Chlorophyll is a naturally occurring chelate compound in which central metal is
A.     copper    B.     magnesium
C.     iron    D.     calcium
Answer & Explanation

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.
View Answer Workspace Report Discuss in Forum
4.

Which of the following is used in pencils?
A.     Graphite    B.     Silicon
C.     Charcoal    D.     Phosphorous
Answer & Explanation

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.
View Answer Workspace Report Discuss in Forum
5.

Which of the following metals forms an amalgam with other metals?
A.     Tin    B.     Mercury
C.     Lead    D.     Zinc
Answer & Explanation

Answer: Option B

Explanation:

No answer description available for this question.

Leave a Reply0

Your email address will not be published.