Polytechnic TRB Chemistry Model Question Paper with Answer Keys - 3

Question: 11

The end product of alcoholic fermentation is

(A) Acetaldehyde

(B) Ethyl alcohol

(C) Formic acid

(D) Pyruvic acid

Question: 12

Which one of the following is not true about cathode rays?

(A) Negatively charged particles

(B) They are made up of particles

(C) Positively charged particles

(D) They travel in straight lines

Question: 13

The mass of a proton is

(A) 1.367 x 10^-27 kg

(B) 1.637 x 10^-27 kg

(C) 1.673 x 10^-27 kg

(D) 1.736 x 10^-27 kg

Question: 14

The important metal used with iron to produce stainless steel is

(A) Carbon

(B) Tin

(C) Aluminium

(D) Chromium

Question: 15

The metal constituent of chlorophyll is

(A) Iron

(B) Potassium

(C) Magnesium

(D) Manganese