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प्रश्न
Balance the following equation:
S + H2SO4 → SO2 + H2O
उत्तर
S + 2H2SO4 → 3SO2 + 2H2O
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संबंधित प्रश्न
State one characteristic of the chemical reaction which takes place when wax is burned in the form of a candle?
One of the following does not happen during a chemical reaction. This is:
(a) Breaking of old chemical bonds and formation of new chemical bonds
(b) Formation of new substances with entirely different properties
(c) Atoms of one element change into those of another element to form new products.
(d) A rearrangement of atoms takes place to form new products.
When metal X is treated with a dilute acid Y, then a gas Z is evolved which burns readily by making a little explosion.
(a) Name any two metals which can behave like metal X.
(b) Name any two acids which can behave like acid Y.
(c) Name the gas Z.
(d) Is the gas Z lighter than or heavier than air?
(e) Is the reaction between metal X and dilute acid Y, exothermic or endothermic?
(f) By taking a specific example of metal X and dilute acid Y, write a balanced chemical equation for the reaction which takes place. Also indicate physical states of all the reactants and products.
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Balance the following equation. Also name the product formed.
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Balance the equation stepwise.
Ag(s) + HCl(aq) → AgCl ↓+ H2 ↑
Choose the correct alternative and rewrite the following sentence.
Which of the following is not required to find the pH of a given solution?
Give reason for the following:
Silver salts are kept in dark coloured bottles.
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Iron + Hydrochloric acid → Iron [II] chloride + Hydrogen
