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प्रश्न
Select the correct answer from the symbol in the bracket.
The element, which like hydrogen is a strong reducing agent.
पर्याय
Pb
Na
S
Cl
उत्तर
Na
APPEARS IN
संबंधित प्रश्न
In the following reaction between lead sulphide and hydrogen peroxide:
PbS (s) + 4H2O2(aq) → PbSO4(s) + 4H2O(1)
(a) which substance is reduced?
(b) Which substance is oxidised?
Identify the component oxidised in the following reaction:
H2S + Cl2 → S + 2HCl
Explain oxidation in terms of gain or loss of oxygen with one example.
Hydrogen burns with a ______ flame and ______ sound is heard.
Explain the following in term of gain or loss of oxygen with two examples.
Reduction
Why zinc and aluminium are considered to have a unique nature. Give balanced equations to support your answer.
Select the oxidising agent for the following reaction:
\[\ce{H2S + I2 -> 2HI + S}\]
Identify the reducing agent in the following reactions
`2"H"_2 + "O"_2 -> 2"H"_2"O"`
On adding a drop of barium chloride solution to an aqueous solution of sodium sulphite, white precipitate is obtained :
- Write a balanced chemical equation for the reaction involved.
- What other name can be given to this precipitation reaction?
- On adding dilute hydrochloric acid to the reaction mixture, white precipitate disappears. Why?
You are provided with two containers made up of copper and aluminium. You are also provided with solutions of dilute HCl, dilute HNO3, ZnCl2 and water. In which of the above containers, can these solutions be kept?
