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Hint: Nascent hydrogen is freshly generated hydrogen, that is highly reactive. Nascent hydrogen is generated in situ by the action of a metal on a salt solution.
Nascent hydrogen is obtained by single displacement reaction in which a metal displaces hydrogen from its salt solution.
Complete answer:
Nascent hydrogen is more reactive than molecular hydrogen. During production of nascent hydrogen, a huge amount of energy is released. This energy activates nascent hydrogen. Hence, nascent hydrogen is energy rich as compared to molecular hydrogen. When nascent hydrogen is formed, it has a form of minute bubbles with high internal pressure. This makes nascent hydrogen more reactive.
Nascent hydrogen is obtained from the reaction between (A) \[\text{Na and }{{\text{C}}_{2}}{{\text{H}}_{5}}\text{OH}\] (B) \[\text{Al and NaOH}\]and (C) \[\text{Zn and dil }{{\text{H}}_{2}}\text{S}{{\text{O}}_{4}}\].
Sodium reacts with ethanol to form sodium ethoxide and ethanol. Write the balanced chemical equation.
\[\text{Na + }{{\text{C}}_{2}}{{\text{H}}_{5}}\text{OH }\to \text{ }{{\text{C}}_{2}}{{\text{H}}_{5}}\text{ONa + }\left[ \text{H} \right]\]
Aluminium reacts with sodium hydroxide to liberate nascent hydrogen.
Write the balanced chemical equation.
\[\text{Al + 2 NaOH }\to \text{ N}{{\text{a}}_{2}}\text{Al}{{\text{O}}_{2}}\text{ + 2 }\left[ \text{H} \right]\]
Zinc reacts with dilute sulphuric acid to form zinc sulphate and nascent hydrogen.
Write the balanced chemical equation.
\[\text{Zn + dil }{{\text{H}}_{2}}\text{S}{{\text{O}}_{4}}\text{ }\to \text{ ZnS}{{\text{O}}_{4}}\text{ + 2 }\left[ \text{H} \right]\]
Hence, option D ) All of these is the correct answer.
Note: Do not mix the concepts of nascent hydrogen and atomic hydrogen. Nascent hydrogen is freshly prepared, highly reactive hydrogen. Whereas atomic hydrogen is stable and does not readily form bonds.
Nascent hydrogen is obtained by single displacement reaction in which a metal displaces hydrogen from its salt solution.
Complete answer:
Nascent hydrogen is more reactive than molecular hydrogen. During production of nascent hydrogen, a huge amount of energy is released. This energy activates nascent hydrogen. Hence, nascent hydrogen is energy rich as compared to molecular hydrogen. When nascent hydrogen is formed, it has a form of minute bubbles with high internal pressure. This makes nascent hydrogen more reactive.
Nascent hydrogen is obtained from the reaction between (A) \[\text{Na and }{{\text{C}}_{2}}{{\text{H}}_{5}}\text{OH}\] (B) \[\text{Al and NaOH}\]and (C) \[\text{Zn and dil }{{\text{H}}_{2}}\text{S}{{\text{O}}_{4}}\].
Sodium reacts with ethanol to form sodium ethoxide and ethanol. Write the balanced chemical equation.
\[\text{Na + }{{\text{C}}_{2}}{{\text{H}}_{5}}\text{OH }\to \text{ }{{\text{C}}_{2}}{{\text{H}}_{5}}\text{ONa + }\left[ \text{H} \right]\]
Aluminium reacts with sodium hydroxide to liberate nascent hydrogen.
Write the balanced chemical equation.
\[\text{Al + 2 NaOH }\to \text{ N}{{\text{a}}_{2}}\text{Al}{{\text{O}}_{2}}\text{ + 2 }\left[ \text{H} \right]\]
Zinc reacts with dilute sulphuric acid to form zinc sulphate and nascent hydrogen.
Write the balanced chemical equation.
\[\text{Zn + dil }{{\text{H}}_{2}}\text{S}{{\text{O}}_{4}}\text{ }\to \text{ ZnS}{{\text{O}}_{4}}\text{ + 2 }\left[ \text{H} \right]\]
Hence, option D ) All of these is the correct answer.
Note: Do not mix the concepts of nascent hydrogen and atomic hydrogen. Nascent hydrogen is freshly prepared, highly reactive hydrogen. Whereas atomic hydrogen is stable and does not readily form bonds.
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