PG TRB Model Question Paper for Chemistry with Answer - 2

Question: 6

Name the metal, which has been used in ancient times

(A) Copper

(B) Titanium

(C) Zinc

(D) Silver

Question: 7

Who discovered electrons?

(A) Chadwick

(B) Rutherford

(C) Goldstein

(D) J.J.Thomson

Question: 8

Which one of the following is used as a moderator in the nuclear reactor?

(A) Radium

(B) Graphite

(C) Thorium

(D) Ordinary water

Question: 9

The credit for the discovery of transuranic element goes to

(A) Hahn

(B) Curie

(C) Seaborg

(D) Rutherford

Question: 10

Red litmus paper is converted into blue in solution of

(A) Acid

(B) Base

(C) Salt

(D) None of these