MEDIUM
10th CBSE
IMPORTANT
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Which of the following is a single displacement reaction?

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Important Questions on Chemical Reactions and Equations

MEDIUM
10th CBSE
IMPORTANT
PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 1 - Chemical Reactions and Equations>SUMMATIVE ASSESSMENT MOCK TEST>Q 30
In which of the following reactions, a precipitate residue is not formed generally when a strong base reacts with a strong acid?
MEDIUM
10th CBSE
IMPORTANT
PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 1 - Chemical Reactions and Equations>SUMMATIVE ASSESSMENT MOCK TEST>Q 31
Which of the following is not a decomposition reaction?
EASY
10th CBSE
IMPORTANT
PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 1 - Chemical Reactions and Equations>SUMMATIVE ASSESSMENT MOCK TEST>Q 32
Which of the following is not an oxidising agent?
MEDIUM
10th CBSE
IMPORTANT
PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 1 - Chemical Reactions and Equations>SUMMATIVE ASSESSMENT MOCK TEST>Q 33
The oxidation reaction which produces heat and light is
MEDIUM
10th CBSE
IMPORTANT
PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 1 - Chemical Reactions and Equations>SUMMATIVE ASSESSMENT MOCK TEST>Q 34

2Pb(NO3)2→2PbO+nA+O2

What is nA in the given reaction?

HARD
10th CBSE
IMPORTANT
PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 1 - Chemical Reactions and Equations>SUMMATIVE ASSESSMENT MOCK TEST>Q 35
A slow combustion in which glucose present in the body cells combine with oxygen to provide energy is
MEDIUM
10th CBSE
IMPORTANT
PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 1 - Chemical Reactions and Equations>SUMMATIVE ASSESSMENT MOCK TEST>Q 36

In the equation:

Cu+XHNO3→Cu(NO3)2+YNO2+2H2O, the value of X and Y are

MEDIUM
10th CBSE
IMPORTANT
PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 1 - Chemical Reactions and Equations>SUMMATIVE ASSESSMENT MOCK TEST>Q 37
When sulphur dioxide and hydrogen sulphide gases mix in the presence of water, the reaction SO2+2H2S+H2O→3H2O+3S occurs. Here, hydrogen sulphide acts as