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प्रश्न
Give a balanced equation for –
A double decomposition neutralization reaction involving an acid and a base
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उत्तर
Neutralization of acid with a base to form salt and water.
\[\ce{\underset{\text{Base}}{NaOH} + \underset{\text{Hydrochloric acid}}{HCl}->\underset{\text{Salt}}{NaCl} + \underset{\text{Water}}{H2O}}\]
\[\ce{\underset{\text{Base}}{Ca(OH)2} + \underset{\text{Acid}}{H2SO4}->\underset{\text{Salt}}{CaSO4} + \underset{\text{Water}}{2H2O}}\]
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संबंधित प्रश्न
Give one example of a decomposition reaction which is carried out by applying heat.
What type of chemical reaction is represented by the following equation?
\[\ce{X -> Y + Z}\]
Two metals X and Y form the salts XSO4 and Y2SO4, respectively. The solution of salt XSO4 is blue in colour whereas that of Y2SO4 is colourless. When barium chloride solution is added to XSO4 solution, then a white precipitate Z is formed along with a salt which turns the solution green. And when barium chloride solution is added to Y2SO4 solution, then the same white precipitate Z is formed along with colourless common salt solution.
- What could the metals X and Y be?
- Write the name and formula of salt XSO4.
- Write the name and formula of salt Y2SO4.
- What is the name and formula of white precipitate Z?
- Write the name and formula of the salt which turns the solution green in the first case.
MULTIPLE CHOICE QUESTIONS
Tick the most appropriate answer.
Thermal decomposition of a substance is brought about with the help of
- reactants
- water
- wind
- heat
Identify the type of following reaction :
Classify the following reaction into different type:
\[\ce{2KClO3(s)->[\Delta] 2KCl(aq) + 3O2(g)}\]
The chemical reaction in which two or more products are formed from a single reactant is called ______ reaction.
What is electrolysis?
When SO2 gas is passed through a saturated solution of H2S, which of the following reaction occurs?
These consist of two statements – Assertion (A) and Reason (R). Answer these questions selecting the appropriate option given below:
Assertion: Silver bromide decomposition is used in black and white photography.
Reason: Light provides energy for this exothermic reaction.
