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Halogens - 3
1.
Hypochlorous acid is an unstable conpound and decomposes gradually in the presence of sunlight to produce.
a) Nascent hydrogen
b) None
c) Nascent chlorine
d) Nascent oxygen
2.
Bleaching powder reacts with concentrated solution of ammonia to give
a) Hydrogen gas
b) Oxygen gas
c) Nitrogen gas
d) Chlorine gas
3.
Bleaching powder reacts with hydrogen peroxide to give
a) Hydrogen gas
b) Oxygen gas
c) All of the above
d) Chlorine gas
4.
The colour of silver chloride is
a) White
b) Greenish yellow
c) Bright yellow
d) Pale yellow
5.
When Chlorine reacts with dilute alkali in cold state, which equation represents the reaction correctly
a) Cl
2
+ 2NaOH -------> NaClO + NaCl + H
2
O
b) 3Cl
2
+ 6NaOH -------> NaClO
3
+ 5NaCl + 3H
2
O
c) Cl
2
+ NaOH -------> NaClO
3
+ 5NaCl + 3H
2
O
d) Cl
2
+ NaOH -------> NaClO + NaCl+H
2
O
6.
Matching Items: Click the correct match for .... Forms bright yellow precipitates with silver nitrate solution
a) Chlorine
b) Iodine
c) Bromine
d) Fluorine
7.
Matching Items: Click the correct match for .... Highly electronegative element
a) Fluorine
b) Bromine
c) Iodine
d) Chlorine
8.
Matching Items: Click the correct match for .... radioactive element
a) Chlorine
b) Astatine
c) Fluorine
d) Bromine
9.
Matching Items: Click the correct match for .... A component of bleaching powder
a) Fluorine
b) Bromine
c) Iodine
d) Chlorine
10.
Matching Items: Click the correct match for .... Chlorine
a) A reducing agent
b) Produce nascent oxygen
c) 2.5 times denser than air
d) Used as disinfectant
11.
Matching Items: Click the correct match for .... Hydrochloric acid
a) Used as disinfectant
b) Produce nascent oxygen
c) A reducing agent
d) Gives white fumes with ammonia
12.
Matching Items: Click the correct match for .... Hypochlorous acid
a) A reducing agent
b) Produce nascent oxygen
c) Gives white fumes with ammonia
d) Used as disinfectant
13.
Matching Items: Click the correct match for .... Bleaching Powder
a) Produce nascent oxygen
b) Gives white fumes with ammonia
c) A reducing agent
d) Used as disinfectant
14.
Matching Items: Click the correct match for .... Calcium hypochlorite
a) Ca(OCl)
2
b) NaClO
c) NaClO
3
d) Na(OCl)
2
15.
Matching Items: Click the correct match for .... Calcium oxychloride
a) CaCl(OCl)
b) NaClO
c) Na(OCl)
2
d) NaClO
3
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