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Byju's Answer

Standard XII

Chemistry

Reactions with Other Compounds

In which one ...

Question

In which one of the following, hydrogen is acting as an oxidizing agent ?

With

L i

to give

L i H

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With

N_{2}

to give

N H_{3}

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With

I_{2}

to give

H I

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With

S

to give

H_{2} S

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Solution

The correct option is A With $L i$ to give $L i H$
Hydrogen is oxisdising Li to Li+

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Similar questions

Q. Assertion :Both

L i

and

M g

combine directly with

N_{2}

to give nitrides

L i_{3} N

and

M g_{3} N_{2}

. Reason: Nitrides of both

L i

and

M g

are decomposed by water to give

N H_{3}

Q. An organic compound

A

upon reacting with

N H_{3}

gives

B

. On heating

B

gives

C . C

in presence of

K O H

reacts with

B r_{2}

to give

C H_{3} C H_{2} N H_{2} . A

is:

Q. An organic compound (A) gives positive Liebermann reaction and on treatment with

C H C l_{3} / K O H

followed by hydrolysis gives (B) and (C) ,. Compound (B) gives colour with Schiff's reagent but not (C), which is steam - volatile. (C) on treatment with

L I A l H_{4}

gives (D),

C_{7} H_{8} O_{2}

which on oxidation gives 9E), Compound (E) reacts with

{(C H_{3} C O)}_{2} O / C H_{3} C O O H

to give a pain - reliever (F), Give structure of (A) to (F) with proper reasoning.

Question 24.
Which of the following statements is not correct ?

(a) All metal carbonates react with acid to give a salt, water and carbon dioxide
(b) All metal oxides react with water to give salt and acid
(c) Some metals react with acids to give salt and hydrogen
(d) Some non-metal oxides react with water to form an acid

Q. Which one of the following elements of group 13 can react with an alkali to give

H_{2}

gas?

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In which one of the following, hydrogen is acting as an oxidizing agent ?

The correct option is A With Li to give LiHHydrogen is oxisdising Li to Li+

The correct option is A With $L i$ to give $L i H$
Hydrogen is oxisdising Li to Li+