Welcome Guest | Sign in | Register

Home > General Knowledge > Chemistry > Questions and Answers

01. The heat required to raise the temperature of body by 1 K is called
A. specific heat B. thermal capacity
C. water equivalent D. None of the above

Answer and Explanation

Answer: thermal capacity

Explanation:
There is no explanation...

Report Errors

Name:

Loading...

VView Answer | RReport | DDiscuss in Forum
02. The luster of a metal is due to:
A. Its high density B. Its high polishing.
C. Its chemical inertness. D. Presence of free electrons.

Answer and Explanation

Answer: Presence of free electrons.

Explanation:
There is no explanation...

Report Errors

Name:

Loading...

VView Answer | RReport | DDiscuss in Forum
03. The nucleus of an atom consists of
A. electrons and neutrons B. electrons and protons
C. protons and neutrons D. All of the above

Answer and Explanation

Answer: protons and neutrons

Explanation:
There is no explanation...

Report Errors

Name:

Loading...

VView Answer | RReport | DDiscuss in Forum
04. The method that cannot be used for removing permanent hardness of water is
A. adding sodium carbonate B. distillation
C. adding caustic soda D. boiling

Answer and Explanation

Answer: boiling

Explanation:
There is no explanation...

Report Errors

Name:

Loading...

VView Answer | RReport | DDiscuss in Forum
05. The hardest form of carbon is
A. coke B. graphite
C. diamond D. charcoal

Answer and Explanation

Answer: diamond

Explanation:
There is no explanation...

Report Errors

Name:

Loading...

VView Answer | RReport | DDiscuss in Forum
06. Among the following which law states that the amount of gas dissolved in a liquid is proportional to its partial?
A. Henry’s law. B. Raoult’s law.
C. Dalton’s law. D. Gay Lussac’s law.

Answer and Explanation

Answer: Henry’s law.

Explanation:
There is no explanation...

Report Errors

Name:

Loading...

VView Answer | RReport | DDiscuss in Forum
07. The oldest rocks in the earth's crust were once molten, and came from deep inside the earth. The molten rock, called magma, spewed out in volcanic eruptions during the earth;s early life and solidified into hard rock's called
A. granite B. basalt
C. igneous rocks D. sedimentary rocks

Answer and Explanation

Answer: igneous rocks

Explanation:
There is no explanation...

Report Errors

Name:

Loading...

VView Answer | RReport | DDiscuss in Forum
08. The metallurgical process in which a metal is obtained in a fused state is called
A. smelting B. roasting
C. calcinations D. froth floatation

Answer and Explanation

Answer: smelting

Explanation:
There is no explanation...

Report Errors

Name:

Loading...

VView Answer | RReport | DDiscuss in Forum



Partner Sites
LucentBlackBoard.com                  SoftLucent.com                  LucentJobs.com
All rights reserved © 2012-2015 SoftLucent.