Lls solve all these que 4.
5.
6,
7.
discharge get KO m'.
60. 20
2 "f 10
cotnbuuion. 'he product' .n
ratio. -Ibe weigh' in 'he mixture
(d) 182 g
(c) 1.36g
Zinc can be determined by the precipitation reaction
A tam.
ple of *inc weighting g wag prepared for this re-
action and required 23 Of M for
titration. % of zinc in the orc is
S g of a sample Of NaaCO•, and Na2SO, it dissolved in
20 mL of 0.2 M FLSO„ II": % sample is
(a) 84.8%
(h) 8.48%
(d) 424%
ne reaction SO, •z + Cl- is to be car-
vied out in basic mediurrn Starting with O. J mole or Cla
0_01 mole of Sz01-2 and (b3 mole of OH- how many
moles of OH- will be left in solution after the reaction is
14.
15,
complete?
(a) 0.1
(c) 0.2
(d) 0.25
3618%
(c) 3333%
Volume Of t}
2.24 L
MnOz react
Certain vo'
volum
(a) 100m
(c) 200
(c) 8.7 g
Passage
IS g of b
bolution.
The loss in weight when I O.S g of MgCO, is heated in
an open crucible is
(b) 5.5g
(a) 4.4 g
(d) 8.9 g
(c) 2.2 g
g of green algæ absorbs 104 moles of C02
hour by as per the following reaction
+ snH20 + 6n02. If all the carbon
in C02 is converted into starch. how long will it take for
tlr algae to increase its mass by 100%
(b) 6.34 min
(a) 6.34 hr
(d) 3.33 hr
(c) 63.4 min
8.
9.
20 g of impure on heating produces a
gas. ne gas is dissolved in H20 and on titration con-
sumes 10 cc 2 M pyrophosphoric acid for complete
reaction. The percentage purity of Mg(NH4) P04 is
(Mg= 24, p = 31)
(b) 33.8%
(a) 54.8%
(c) 67.6%
When one gram mol of KMn04 reacts with HCI, the
volume of chlorine liberated at NTP will bc
(a) 11.2 lit
(b) 22.4 lit
(c) 44.8 lit
(d) 56 lit
A mixture of carbonates of two bivalent metals contains
13.6% of one metal. If 2.5 g of the mixture liberates
1.33 g of C02. The % by weight of the other metal
16.
17.
18.
19.
20.
0 0425 m,
The perce
The volu
above re:
(C) 0.12
"Itie volu
(C) 482
Specific
6.02
10
Percenl
anhydr
molar
(c) 25
(a) 13.6
(c) 13.84
(b) 126
(d) 12.84
