1000+ TNPSC Group 1 Previous Year Question Paper Pdf - 2

Question: 6

Oxidation is defined as

(A) Loss of protons

(B) Gain of protons

(C) Gain of electrons

(D) Loss of electrons

Question: 7

A bond formed by sharing of electrons between atoms of the elements is called

(A) Ionic bond

(B) Coordinate bond

(C) Covalent bond

(D) None of these

Question: 8

Sodium carbonate crystals lose water molecules. This property is called

(A) efflorescence

(B) hygroscopy

(C) deliquescence

(D) none of these

Question: 9

The value of Planck’s constant is

(A) 6.62 × 10^-34 erg.s

(B) 6.62 × 10^-34 J

(C) 6.62 × 10^-34 Js

(D) None of these

Question: 10

Amino acids present in insulin are

(A) 21

(B) 30

(C) 51

(D) 61