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Subjects
Science CBSE
Class 10
Chemical reaction and equations
Textbook questions

8. Exercises I

Exercise condition:

2 m.

Choose all possible answers:

1. Which of the statements about the reaction below are incorrect?

$2PbO$ (s) +

$C$ (s) →

$2Pb$ (s) +

$CO_2$ (g)

Lead is getting reduced
Corbon is getting reduced
Lead oxide is getting reduced.
Carbon dioxide is getting oxidised.
Carbon is getting oxidised.

2. Translate the following statements into chemical equations and then balance them.

Hydrogen gas combines with nitrogen to form ammonia.

$3H_2$ + $N_2$ → $2NH_5$
$3H_2$ + $N_2$ → $2NO_3$
$3H_2$ + $N_2$ → $2NH_3$
$3H_2$ + $N_2$ → $NH3$
$2H_2$ + $N_2$ → $2NH_3$

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