General Knowledge - Chemistry

Exercise : Chemistry - Section 1
  • Chemistry - Section 1
6.
The metallurgical process in which a metal is obtained in a fused state is called
smelting
roasting
calcinations
froth floatation
Answer: Option
Explanation:
No answer description is available. Let's discuss.

7.
The molecules of which gas have highest speed?
H2 at -73oC
CH4 at 300 K
N2 at 1,027oC
O2 at 0oC
Answer: Option
Explanation:
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8.
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
granite
basalt
igneous rocks
sedimentary rocks
Answer: Option
Explanation:
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9.
The law which states that the amount of gas dissolved in a liquid is proportional to its partial pressure is
Dalton's law
Gay Lussac's law
Henry's law
Raoult's law
Answer: Option
Explanation:
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10.
The main buffer system of the human blood is
H2CO3 - HCO3
H2CO3 - CO32-
CH3COOH - CH3COO-
NH2CONH2 - NH2CONH+
Answer: Option
Explanation:
No answer description is available. Let's discuss.