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प्रश्न
Give an example of a reaction where the following are involved
Pressure
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उत्तर
\[\ce{N2 + 3H2 ⇌[][Above 200 atm] 2NH3}\]
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संबंधित प्रश्न
Classify the following reaction as combination, decomposition, displacement, precipitation and neutralization. Also balance the equation.
\[\ce{NH3_{(g)} + HCl_{(g)} -> NH4Cl_{(s)}}\]
MULTIPLE CHOICE QUESTIONS
Tick the most appropriate answer.
Compounds, which in their molten state allow an electric current to pass through them are called
- electrolytes
- non-electrolytes
- non-conductors
- none of these
TRUE \ FALSE
Weak electrolytes dissociate partially in their aqueous or fused state.
Define a photochemical reaction.
Complete and balance the following reaction:
\[\ce{CuCO3 ->[\Delta]}\]
Distinguish by heating the following in dry test tubs.
Zinc carbonate, Copper carbonate and lead carbonate.
Name the following:
The type of change physical or chemical involved – ‘during respiration in human beings’.
Complete the table given below.
| Heat on iodine crystals | Colour of vapours evolved |
Name the solid residual product formed reaction and state its colour during – thermal decomposition of the following substance.
Ammonium dichromate.
Vanaspati is obtained from vegetable oils by the addition of ______ to the oils.
