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CBSE Class 10 Chemistry Chemical Reaction and Equations (Easy)
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Question 1 of 10
1. Question
Magnesium ribbon is rubbed before burning because it has a coating of
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Question 2 of 10
2. Question
Oxidation is a process which involves
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Question 3 of 10
3. Question
Give the ratio in which hydrogen and oxygen are present in water by volume.
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Question 4 of 10
4. Question
\(
\begin{aligned}
&\mathrm{MnO}_{2}+4 \mathrm{HCl} \rightarrow 2+2 \mathrm{H}_{2} \mathrm{O}+\mathrm{Cl}_{2}\\
&\text { Identify the substance oxidized in the above equation. }
\end{aligned}
\)Correct
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Question 5 of 10
5. Question
Which of the following is an endothermic process?
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Question 6 of 10
6. Question
What type of chemical reactions take place when electricity is passed through water?
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Question 7 of 10
7. Question
A substance added to food containing fats and oils is called
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Question 8 of 10
8. Question
\(
\begin{aligned}
\mathrm{Pb} + \mathrm{CuCl}_{2} &\rightarrow \mathrm{PbCl}_{2} + \mathrm{Cu}
\end{aligned}
\)Correct
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Question 9 of 10
9. Question
The condition produced by aerial oxidation of fats and oils in foods marked by unpleasant smell and taste is called:
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Question 10 of 10
10. Question
Which of the following gases can be used for storage
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