A gas (X) is obtained when copper reacts...

A gas (X) is obtained when copper reacts with dilute `HNO_(3)`. The gas thus formed reacts with oxygen to give brown fumes of (Y). (Y) when dissolved in water gives an important acid (Z) and the gas (X). X, Y and Z respectively are

`NO, NO_(2), HNO_(3)`

`NO_(2), NO, HNO_(3)`

`N_(2)O, NO, HNO_(2)`

`NO, N_(2)O, HNO_(3)`

Text Solution

Verified by Experts

The correct Answer is:

`3Cu+8HNO_(3("dil"))rarr3Cu(NO_(3))_(2)+underset("(X)")(2NO)+4H_(2)O`
`2NO+O_(2) hArr underset("(Y)")(2NO_(2))`
`underset("(Y)")3NO_(2)+H_(2)Orarrunderset("(Z)")(2HNO_(3))+underset("(X)")(NO)`

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Which gas is produced when metal reacts with dilute acids?

Oxygen

Carbon Dioxide

Nitrogen

Hydrogen

Which gas is produced when metals react with Dilute Acids?

1. Nitrogen

2. Hydrogen

3. Carbon Dioxide

4. Oxygen

When PbO_(2) reacts with conc. HNO_(3) the gas evolved is

`NO_(2)`

`O_(2)`

`N_(2)`

`N_(2)O`