This sheet is a quiz-sheet of Class 10th chemistry first chapter for central as well as state board. This sheet is a revision test in just a single sheet.

1. Chemical Reaction & Equations Chemistry
N2 + 3H2 2NH3
Reactant Side Product Side
C C
H H
O O
RReactants Product
Common Observations of Chemical Reaction-
1. Change State of Substance
Eg: _________________________________________
2. Change in colour of Substance
Eg: __________________________________________
3. Evaluation of Gas
Eg: __________________________________________
4. Change in Temperature
Eg: __________________________________________
Balancing Chemical Equations
1. __ P + __ O2 __ P2O5
2. Na + H2O NaOH + H2O
3. Aluminum Bromide + Potassium Sulphate
Potassium Bromide + Aluminum Sulphate
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4. Hydrogen sulphide gas reacts with Oxygen gas to form
solid Sulphur and liquid water. (with their State)
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5. Iron(III) Oxide(s) + Carbon monoxide(g)
Iron(s) + Carbon dioxide (g)
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Correct atom count on Reactant & Product Side
C3H8 + O2 CO2 + H2O
Electrolysis of Water
________________________________________
a) Gas collected at Cathode ________________
b) Gas collected at Anode _________________
c) Amount of gas collected doubled that of
another electrode _________________
Identify Chemical Reaction & Write the Reaction
On heating green coloured Ferrous Sulphate
crystals, reddish brown solid is let & smell of gas
having odour of burning Sulphur is observed.
_________________________________________
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Identify Oxidizing Agent
1) 2Mg + O2 2MgO ___________
2) CuSO4 + Zn Cu + ZnSO4 ________
Why Does the Colour of Copper sulphate solution
change when an iron nail is dipped in it?
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Silver Chloride is exposed to sunlight
Write a Chemical Reaction
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Use
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Precipitation Reaction
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__________________________________
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Eg:
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2H2S + SO2 2H2O + 3S( )
( ) What information does this symbol gives
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