Multiple Choice Question Answer XII — task. Science CBSE, Class 10.

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1. When dilute hydrochloric acid is added to iron fillings

No reaction takes place
Iron salt and water are produced
Hydrogen gas and ferric chloride are produced
Chlorine gas and ferric hydroxide are produced

2. In the reaction

$xPb(NO_3){_3}{_2} \overset{Heat}{\rightarrow} yPbo + zNO_2 + O_2$ x,y and z are

2,2,4
4,2,2
1,1,2
1,2,4

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