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प्रश्न
Complete and balance the following equation:
CuO +__________→ Cu +___________
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उत्तर
\[\ce{CuO + H2→ Cu + H2O}\]
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संबंधित प्रश्न
Give one example of an oxidation-reduction reaction which is also a displacement reaction.
In the context of redox reactions, the removal of hydrogen from a substance is known as ______.
The colours of aqueous solutions of CuSO4 and FeSO4 as observed in the laboratory are:
(A) pale green and light blue respectively
(B) light blue and dark green respectively
(C) dark blue and dark green respectively
(D) dark blue and pale green respectively
State, giving reason, whether the substances printed in bold letters have been oxidized or reduced.
PbO + CO → Pb + CO2
Which of the following statements about hydrogen is incorrect?
Balance the given chemical reaction as per the instructions below.
\[\ce{NaOH + H2SO4 -> Na2SO4 + H2O}\]
Oxidation means losing electrons then what is reduction?
Which of the following statements about the given reaction are correct?
\[\ce{3Fe_{(s)} + 4H2O_{(g)} -> Fe3O4_{(s)} + 4H2_{(g)}}\]
(i) Iron metal is getting oxidised.
(ii) Water is getting reduced.
(iii) Water is acting as the reducing agent.
(iv) Water is acting as oxidising agent.
Which among the following are physical or chemical change?
Evaporation of petrol
During the reaction of some metals with dilute hydrochloric acid, following observations are made.
Silver metal does not show any change
Explain this observation giving suitable reason.
Identify the following reactions as oxidation/reduction/redox reaction
2Mg +O2 → 2MgO
