Multiple choice question

5 fLFkj vuqikr fu;e ds LFkkid Fks&
(a) tku MkYVu (b) ts-ch- fjpMZ (c) izkmLV (d) ySUMksYV
The founder of the law of constant proportion was–
(a) John Dalton (b) J.B. Richard (c) Proust (d) Landolt
6 nzO;eku laj{k.k fu;e fn;k&
(a) izkmLV (b) izhLVys (c) ySUMkSYV (d) MkYVu
The law of conservation of mass was given by–
(a) Proust (b) Priestley (c) Landolt (d) Dalton
7 vkf.od nzO;eku vkSj ok"i ?kuRo ds chp lEcU/k gS&
(a) 2 x V.D. (b) ½ V.D. (c) ¼ V.D. (d) buesa ls dksbZ ugha
Relationship between molecular mass and vapour density is–
(a) 2 x V.D. (b) ½ V.D. (c) ¼ V.D. (d) None of these
8 jklk;fud lehdj.k dks larqfyr djks&
Balance the chemical equation–
KOH + Cl KClO + KCl + H2O 2 3
9 fuEu lehdj.k dks larqfyr djks&
Balance the following chemical equation–
Fe 2 (SO 4 ) 3 + NH 3 + H 2 O Fe(OH) 3 + (NH 4 ) 2 SO 4
10 STP ij 32 xzke O 2 dk vk;ru gksxk&
The volume of 32 grams of O 2 at STP will be–
(a) 16 x 2 CC (b) 2 x 22.4 Litre or 2 x 22400 CC
(c) 8 x 22400 CC (d) 32 x 22400 CC
11 H O esa H rFkk O dk HkkjkRed vuqikr gksxk&
2 2 2
(a) 2:8 (b) 2:16 (c) 2:1 (d) buesa ls dksbZ ugha
3