solve Q 22 plz dont give link (C) 3.0 M
(D) 3.4 M
171 g of cane sugar (C12H 2011) is dissolved in I litre of water. The molarity of the solution is :
(A) 2.0 M
(B) 1.0 M
VC)-03 M
(D) 0.25 M
(2.19 Howmuch grams ofCH30H should bedissolved inwater for preparing 150 ml. of 2.0 MCH30Hsolution
196.6
(B) 2.4
(C) 9.6 x 103
Q.2 what is false for mole fraction:
(2.21 Molarity of liquid HCI if density of solution isl .17 g/cc..
(A) 36.5
(B) 18.25
ucy±.05
(D) 4.3 x 102
(D) 42.10
(2.22. The molarity ofa solution made by mixing 50 ml of conc. H2S04 (18 M) with 50 ml. of water,
is:
(A) 36 M
(B) 18M
(D) 6M
Q.23 Equal volumes of 10% (v/v) of I-ICI is mixed with 10% (v/v) NaOH solution. If density of pure
NaOH is I .5 times that of pure HCI then the resultant solution be.
\W6asic
(B) neutral
(C) acidic
(D) can't be predicted.
Q.24 One mole mixture of CHA & air (containing 80% N 20% 02 by volume) of a composition such that
when underwent combustion gave maximum heat (assume combustion of only CH4). Then which
Ofthe statements are correct, regarding composition of initial mixture.(X presents mole fraction)
1
x
,x
2
8
3
(B) x CHA - 8
' 02 8
1
CH4 = ¯
02 ¯¯
11' N
11
2
