EASY
10th CBSE
IMPORTANT
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Breaking of lead bromide into lead and bromine is an example of

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Important Questions on Chemical Reactions and Equations

EASY
10th CBSE
IMPORTANT
SCIENCE CHEMISTRY Part-II>Chapter 1 - Chemical Reactions and Equations>Summative Assessment>Q 31
In the equation PbO2+4HCl→PbCl2+2H2O+Cl2, the substance undergoing oxidation is
EASY
10th CBSE
IMPORTANT
SCIENCE CHEMISTRY Part-II>Chapter 1 - Chemical Reactions and Equations>Summative Assessment>Q 32
NaCl+AgNO3→AgCl+NaNO3 is an example of.
EASY
10th CBSE
IMPORTANT
SCIENCE CHEMISTRY Part-II>Chapter 1 - Chemical Reactions and Equations>Summative Assessment>Q 33
In the reaction BaCl2+ZnSO4→ZnCl2+BaSO4, the white precipitate seen is due to
EASY
10th CBSE
IMPORTANT
SCIENCE CHEMISTRY Part-II>Chapter 1 - Chemical Reactions and Equations>Summative Assessment>Q 34
The formula for rust is
EASY
10th CBSE
IMPORTANT
SCIENCE CHEMISTRY Part-II>Chapter 1 - Chemical Reactions and Equations>Summative Assessment>Q 35
The main cause of rancidity in food is:
EASY
10th CBSE
IMPORTANT
SCIENCE CHEMISTRY Part-II>Chapter 1 - Chemical Reactions and Equations>Summative Assessment>Q 36
Some crystals of copper sulphate were dissolved in water. The colour of the solution obtained would be
EASY
10th CBSE
IMPORTANT
SCIENCE CHEMISTRY Part-II>Chapter 1 - Chemical Reactions and Equations>Summative Assessment>Q 37
When dilute HCl is added to zinc pieces taken in a test tube:
EASY
10th CBSE
IMPORTANT
SCIENCE CHEMISTRY Part-II>Chapter 1 - Chemical Reactions and Equations>Summative Assessment>Q 38
Which of the following will give a colourless gas that burns with pop sound on reaction with dilute HCl