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प्रश्न
Give a balanced equation for reaction of nitrogen dioxide with water.
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उत्तर १
\[\ce{2NO2 + H2O -> \underset{nitrous acid}{HNO2} + \underset{nitric acid}{HNO3}}\]
उत्तर २
\[\ce{4NO2 + O2 + 2H2O -> \underset{nitric acid}{4HNO3}}\]
संबंधित प्रश्न
Give the names and formulae of two strong acids and two weak acids.
What happens during a wasp sting? What is its remedy?
One of the following salts will give an alkaline solution on dissolving in water. This is:
a) Na2CO3
(b) Na2SO4
(c) NaCl
(d) (NH4)2 SO4
Consider the following substances:
NaCl, Ca(OH)2, NaHCO3, NH3, Na2CO3, H2O, Cl2, CO2, CaSO4.2H2O, 2CaSO4.H2O, CaOCl2
Which compound is used as an antacid?
Which acid is used for getting chloride salt?
Which are the industrial uses of acids?
State whether the following statement is true or false. Correct the false statement.
All substances are either acidic or basic.
Match the substances in Column I with those in Column II.
| Column 1 | Column II | ||
| (a) | Tartaric acid | (i) | soap |
| (b) | Calcium hydroxide | (ii) | curd |
| (c) | Formic acid | (iii) | unripe mangoes |
| (d) | Sodium hydroxide | (iv) | ant’s sting |
| (e) | Lactic acid | (v) | lime water |
A metal 'M' on reacting with dilute acid liberates a gas 'G'. The same metal also liberates gas 'G' when reacts with a base.
- Write the name of gas 'G'.
- How will you test the presence of this gas?
- Write chemical equations for the reactions of the metal with (1) an acid and (2) a base.
Explain the following:
\[\ce{H3PO3}\] is not a tribasic acid.
