TNPSC Group 2a Study Material in Tamil and English Pdf - 1

Question: 1

Domestic cooking gas consists of mostly

(A) Hydrogen and acetylene

(B) Ethylene and carbon monoxide

(C) Liquified butane and iso-butane

(D) Methane and ethane

Question: 2

Which is the used in storage batteries

(A) Lead

(B) Tin

(C) Zinc

(D) CU

Question: 3

The most common lanthanide is

(A) Samarium

(B) Plutonium

(C) Cerium

(D) Lanthanum

Question: 4

Cinnabar is an ore of

(A) Au

(B) Ag

(C) Hg

(D) Zn

Question: 5

Maximum hydrogen bonding would be observed in the compound

(A) Diethyl ether

(B) Diethylamine

(C) Glycol

(D) Methanol