Kerala SCERT Class 9 Chemistry Non Metals Question Answer
Kerala SCERT Class 9 Chemistry Chapter 6 Non Metals Question Answer Solution Here. Kerala Board Class 9 Students can find Here 6th Chapter Non Metals Notes provide by our Teacher. Important Question Answer from Chapter 6 Non Metals.
- Board- Kerala Board.
- Class – 9.
- Subject – Chemistry Part 2
- Chapter – 6
- Chapter Name – Non Metals.
- Topic – Question Answer Solution.
Q.1) MCQ.
1) The percentage of nitrogen present in atmosphere is——————–.
a) 9 %
b) 00 %
c) 08 %
d) 08 %
2) The protein present in food materials contains.
a) Carbon, hydrogen
b) Carbon
c) Carbon, hydrogen, oxygen, nitrogen
d) Carbon, hydrogen, oxygen.
3) PVC in plastic contains.
a) Carbon, vinyl
b) Carbon, hydrogen, chlorine
c) Carbon, hydrogen, oxygen
d) Carbon, hydrogen.
4) Which of the following is Non-metal.?
a) Zn
b) O
c) Fe
d) Cu
5) Who discovered hydrogen.?
a) Joseph Priestly b) John Dalton
c) Carl William Scheele d) Henry Cavandish
6) Oxygen is prepared by ———————————————-reaction.
a) Decomposition reaction
b) Substitution reaction
c) Combination reaction
d) Displacement reaction
7) The burning of Substance in a oxygen is called——————————-.
a) Decomposition
b) Combustion
c) Respiration
d) Combination
8) Ozone contains———- atoms of oxygen.
a) 1
b) 2
c) 3
d) 4
9) Ozone is found in ——————– layer of atmosphere.
a) Homosphere
b) Startosphere
c) Lithosphere
d) Hydrosphere
10) Which day celebrated as International Ozone day.
a) 16 September
b) 16 December
c) 14 September
d) 14 December
11) ———————————— causes depletion of ozone layer.
a) Chloroflurocarbons
b) Carbons
c) Hydrogen gas
d) Chlorine gas
12) The major compound in atmosphere is ——————————–.
a) Oxygen
b) Chlorine
c) Nitrogen
d) Ozone
13) Which bacteria helps in nitrogen fixation in soil.
a) Pseudomonas
b) Rhizobium
c) Bacillus
d) Nostoc
14) Major component of bleaching powder is ——————.
a) Cl
b) O
c) H
d) N
15) Which of the following is double-displacement reaction.
a) 2KCl –> 2K + Cl2
b) CaCO3 –> CaO + CO2
c) KCl + AgNO3 –> AgCl + KNO3
d) 2HI –> H2 + I2
Q.2) Very Short answer Questions.
1) Which is the major component of gas present in atmosphere, give the
The names of other gases present?
2) Stat the elements present in Facts and polythene.
3) Give the reaction between Hydrogen and Oxygen?
4) Define combination reaction, and explain the reaction between
Hydrogen and Chlorine?
5) Define fuel – cell?
6) Enlist some compounds which contains oxygen?
7) Define Decomposition reaction, stat the reaction of decomposition
Hydrogen peroxide? Which gas evolved during the reaction?
8) Is oxygen has colour and odour?
9) Is oxygen helps burning or itself burns?
10) Define CFC and its role in depletion of O3?
11) Define Bio decomposition?
12) How many layers of Atmosphere exists, give their names?
13) Define Ozone layer depletion.?
14) Whit is Nitrogen fixation in plants?
15) List two limitations and two advantages of organic fertilizers?
16) State the uses of nitrogen?
17) Give the two uses of chlorine?
Q.3) Short answer question.
1) Complete the table.
S.N. | Element | Use |
1 | Hydrogen | —– |
2 | —— | Biodegradation |
3 | —— | Bleaching |
4 | Oxygen | —– |
2) Define double decomposition reaction, explain the reaction between silver nitrate solution and salt solution?
3) Write note on Bleaching of Chlorine?
4) Which chemicals are used in laboratory for preparation of chlorine, Give reaction?
5) Distinguish between Organic fertilizers and Chemical fertilizers?
6) Write note on ozone layer depletion. What can we do for the Protection of ozone layer?
7) State the explain Biodecomposition?
8) Enlist some uses of hydrogen?
9) Complete the reaction?
a) H2 + ——-à 2HCl
b) H2 + ——-à H2S
c) —-+ H2à 2NaH
d) —- + H2O à Ca (OH)2
10) Define Substitution reaction with example?
Q.4) Long answer question.
1) Write down the chemical needed to prepare oxygen and hydrogen
In the Laboratory write one reaction?
2) find out to which gases are the following statements related?
a) The gas formed by electrolysis of water.
b) The gas used for bleaching.
c) The gas used to remove stain from cloths.
d) The gas used as oxidising agent in rocket fuels.
e) The gas used as a fuel.
f) The gas used for artificial respiration.
3) Classify and name the following reactions?
1) 2HI –> H2 + l2
2) 2H2 + O2 –> 2H2O
3) Na2SO4 + BaCl2 –> BaSO4 + 2NaCl
4) Mg + 2HCl –> MgCl2 + H2
5) Mg + H2SO4 –> MgSO4 + H2
6) CaCO3 –> CaO + CO2
7) 2H2O –> 2H2 + O2
4) State and explain the use of organic fertilizers instead of Chemical Fertilizers?
5) Match the pairs.
S.N. | “A” | “B” |
1 | Oxygen | Disinfectant |
2 | Chlorine | Chlorofluorocarbon |
3 | Nitrogen | Nitrogen fixation |
4 | Hydrogen | Cooling agent |
5 | Ozone | Biodegradation |
6 | Rhizobium | Fuel |
6) a) How does chlorine prepared in laboratory?
b) How is Bleaching powder prepared?
c) Is Chlorine saviour or destroyer?
d) Write 4 uses of chlorine?
e) Which reaction is done for identification of chlorine, explain with example?
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