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प्रश्न
In order to prevent the spoilage of potato chips, they are packed in plastic bags in an atmosphere of ______.
विकल्प
Cl2
H2
N2
O2
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उत्तर
In order to prevent the spoilage of potato chips, they are packed in plastic bags in an atmosphere of N2.
Explanation:
Nitrogen (N2) is an inert gas that creates an oxygen-free environment inside the bag, preventing the aerial oxidation of fats and oils in the chips. This stops them from turning rancid and keeps them crisp and fresh for a long time.
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संबंधित प्रश्न
Which of the statements about the reaction below are incorrect?
\[\ce{2PbO(s) + C(s) → 2Pb(s) + CO2(g)}\]
- Lead is getting reduced.
- Carbon dioxide is getting oxidised.
- Carbon is getting oxidised.
- Lead oxide is getting reduced.
Write the chemical formula of rust.
When a magnesium ribbon burns in air with a dazzling flame and forms a white ash, is magnesium oxidised or reduced? Why?
Give an example of an oxidation reaction.
Give one example of an oxidation-reduction reaction which is also a displacement reaction.
In the reaction represented by the following equation:
\[\ce{CuO_{(s)} + H2_{(g)} -> Cu_{(s)} + H2O_{(l)}}\]
- name the substance oxidised
- name the substance reduced
- name the oxidising agent
- name the reducing agent
Name the following:
The process in which oxygen is added or hydrogen is removed.
Identify the substances that are oxidised and the substances that are reduced in the following reaction.
\[\ce{CuO_{(s)} + H2_{(g)} -> Cu_{(s)} + H2O_{(l)}}\]
Give scientific reason.
It is reccommended to use air tight container for storing oil for long time.
Give the general group study of hydrogen with reference to
reducing power
State whether the following conversion is oxidation or reduction:
K → K+ + e-
Choose terms from the options given in brackets to complete this sentence.
When CuO reacts with hydrogen,………………… is reduced and ……………….is oxidized to ………………….
(CuO, H2, Cu, H2O)
State a reason why, when hydrogen is passed over heated copper oxide, the resultant product formed, differs in colour from the original reactant.
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.
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.
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- On adding dilute hydrochloric acid to the reaction mixture, white precipitate disappears. Why?
Oxidizing agents are otherwise called ______.
Identify the following reactions as oxidation/reduction/redox reaction
CuO+H2 → Cu+H2O
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