Day 227: CBSE Class 10 Science

1. A.
   Aluminium
2. B.
   Calcium
3. C.
   Sodium
4. D.
   Magnesium

Tap an option to check your answer.

1. A.
   Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
2. B.
   Both Assertion (A) and Reason (R) are true and Reason (R) is not the correct explanation of the Assertion (A).
3. C.
   Assertion (A) is true, but Reason (R) is false.
4. D.
   Assertion (A) is false, but Reason (R) is true.

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1. A.
   $\mathrm{CH_4 + O_2 \rightarrow CO_2 + 2H_2O}$
2. B.
   $\mathrm{CH_4 + 2O_2 \rightarrow 2CO_2 + 2H_2O}$ + Energy
3. C.
   $\mathrm{CH_4 + 2O_2 \rightarrow CO_2 + 2H_2O}$
4. D.
   $\mathrm{CH_4 + 2O_2 \rightarrow CO_2 + 2H_2O}$ + Energy

Tap an option to check your answer.