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प्रश्न
Give an example of double displacement reaction, where a gas is evolved.
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उत्तर
\[\ce{Na2S + 2HCI -> 2NaCI + H2S ↑}\]
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संबंधित प्रश्न
(a) Define the neutralization reaction with an example.
(b) Give a balanced equation for this reaction.
(c) Give three applications of neutralization reactions.
State the type of reactions for the following represent and balance the ones that are not balanced.
Fe + CuSO4→ FeSO4 + Cu
State the type of reactions for the following represent and balance the ones that are not balanced.
KNO3 + H2SO4 → HNO3 + KHSO4
What is a decomposition reaction?
State which of the substance given below evolve oxygen gas on thermal decomposition.
Zinc carbonate
Give a balanced equation for a direct combination reaction involving:
Two elements – one of which is a neutral gas and the other a monovalent metal
Give a balanced equation for the following reaction of synthesis involving the formation of:
An alkali – from a basic oxide – sodium oxide
State how displacement reaction represented.
Explain the term double decomposition precipitation reaction.
Complete the statement by filling in the blank with the correct word:
Formation of hydrogen chloride from hydrogen and chlorine is an example of __________.
