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प्रश्न
Fill in the following blank with suitable word:
A solution made in water is known as an ........... solution and indicated by the symbol ...........
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उत्तर
A solution made in water is known as an aqueous solution and indicated by the symbol (aq).
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संबंधित प्रश्न
Write the balanced chemical equation for the following reaction.
\[\ce{Zinc + Silver nitrate -> Zinc nitrate + Silver}\]
Balance the given equation:
BaCI2 + H2SO4 
BaSO4 + HCI
State one characteristic of the chemical reaction which takes place when wax is burned in the form of a candle?
A white precipitate will be formed if we add common salt solution to:
(a) Ba(NO3)2 solution
(b) KNO3 solution
(c) AgNO3 solution
(d) Mg(NO3)2 solution
Write word equation for the following skeletal equation:
\[\ce{CO + O2 -> CO2}\]
Balance the following equation. Also name the product formed.
`"CO" + "O"_2 → " CO"_2`
Balance the following equation:
Zn + HNO3 `→` Zn(NO3)2 + H2O + NO2
Write word equation for the following molecular equation:
\[\ce{NH3 [g] + HCl [g] ⇌ NH4Cl [s]}\]
Word equation:
State which characteristic is observed in the above reaction.
Give an-example of a similar above characteristic, seen between two other gaseous reactants.
Write word equation for the following molecular equation:
FeSO4 + 2NaOH →Na2SO4 + Fe(OH)2 ↓
Word equation:
State why [↓] indication is seen after Fe(OH)2 and not after Na2SO4
Give a balanced equation for addition of iron to copper [II] sulphate solution. State the change in colour seen.
Give one example in the case where supplying energy [given below] is necessary for a chemical reaction.
Pressure
Give an example of a chemical equation in which two reactants form:
four product
Balance the following simple equation:
ZnS + O2 → ZnO + SO2
Balance the following simple equation:
Mg + N2 → Mg3N2
Balance the following simple equation:
Al + H2O → Al2O3 + H2
Underline the compound in the equation given below, it is incorrectly balanced and write the correct balancing for the same.
Cl2 + 2H2O + SO2 → 4HCl + H2SO4
Underline the compound in the equation given below, it is incorrectly balanced and write the correct balancing for the same.
3CuO + NH3 → 3Cu + 3H2O + N2
The chemical equation Na2SO4(aq) + BaCl2(aq) → BaSO4(s)↓ + 2NaCl(aq) represents which of the following types of reaction?
Which of the following are exothermic processes?
- Reaction of water with quick lime
- Dilution of an acid
- Evaporation of water
- Sublimation of camphor (crystals)
Which among the following statement(s) is(are) true? ‘Exposure of silver chloride to sunlight for a long duration turns grey due to
- The formation of silver by the decomposition of silver chloride.
- sublimation of silver chloride.
- decomposition of chlorine gas from silver chloride.
- oxidation of silver chloride.
