Multiple choice question

2 O rFkk H dk ?kuRo vuqikr 16:1 gS buds oxZ ek/; ewy osx dk vuqikr
2 2
gksxkA
(a) 4:1 (b) 1:16 (c) 1:4 (d) 16:1
The ratio between densities of O 2 and H 2 is 16:1. Their root mean square
velcoity will be–
(a) 4:1 (b) 1:16 (c) 1:4 (d) 16:1
3 fLFkj nko ij fdlh vkn'kZ xSl dk oxZ ek/; ewy osx ?kuRo ds lkFk fuEu
laca/k j[krk gS\
(a) d2 (b) d (c) √d —
(d) 1 — —
√d
On constant presser the root mean square velocity of an ideal gas has relation
with its density–
(a) d2 (b) d (c) √d —
27
(d) 1 — √d —
4 veksfu;k¡ dh cksry [kqyrs gh xa/k iwjs dejs esa igqap tkrh gS ftls vklkuh ls
lwa?kdj igpkuk tk ldrk gS] D;ksafd&
(a) veksfu;k¡ vR;f/kd rhoz xa/k okyh xSl gSA
(b) veksfu;k¡ cgqr rhoz xfr ls mM+rh gSA
(c) ;g cgqr rhozrk ls folfjr gksrh gSA
(d) ;g ok;q ls gYdh gksrh gSA
Smell of NH 3 gas can be experienced on opening its bottle through out the
space in the room beacause–
(a) It is pungent smelling gas (b) NH 3 evaporates very fast
(c) It diffuses very fast (d) NH 3 is lighter than air
5 xSl ds ?kuRo ,oa folj.k nj ds chp lEca/k gksrk gS\
The relationship among density of a gas and its rate of diffusion is–
(a) r α v (b) r α 1 √ (c) v α 1 2
d
√ (d) v α
d
1 d