Bond dissociation enthalpy of $$E-H$$ ( $$E$$ = element ) bonds is given below. Which of the compounds will act as strongest reducing agent?

Compound $$N{H_3}$$ $$P{H_3}$$ $$As{H_3}$$ $$Sb{H_3}$$

$${\Delta _{diss}}\left( {E - H} \right)/kJ\,mo{l^{ - 1}}$$ 389 322 297 255

Question

Bond dissociation enthalpy of $$E-H$$ ( $$E$$ = element ) bonds is given below. Which of the compounds will act as strongest reducing agent?

Compound $$N{H_3}$$ $$P{H_3}$$ $$As{H_3}$$ $$Sb{H_3}$$

$${\Delta _{diss}}\left( {E - H} \right)/kJ\,mo{l^{ - 1}}$$ 389 322 297 255

Compound	$$N{H_3}$$	$$P{H_3}$$	$$As{H_3}$$	$$Sb{H_3}$$
$${\Delta _{diss}}\left( {E - H} \right)/kJ\,mo{l^{ - 1}}$$	389	322	297	255

A. $$N{H_3}$$

B. $$P{H_3}$$

C. $$As{H_3}$$

D. $$Sb{H_3}$$

Answer : $$Sb{H_3}$$

Solution :
$$Sb{H_3}$$ will act as strongest reducing agent as it has lowest bond dissociation energy and $$Sb-H$$ bond is weaker.

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Inorganic Chemistry >> P - Block Elements

Releted Question 1

The reddish brown coloured gas formed when nitric oxide is oxidised by air is

A. $${N_2}{O_5}$$

B. $${N_2}{O_4}$$

C. $$N{O_2}$$

D. $${N_2}{O_3}$$

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Releted Question 2

The temporary hardness of water due to calcium carbonate can be removed by adding —

A. $$CaC{O_3}$$

B. $$Ca{\left( {OH} \right)_2}\,$$

C. $$CaC{l_2}$$

D. $$\,HCl$$

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Releted Question 3

Which of the following is most stable to heat

A. $$HCl$$

B. $$HOCl$$

C. $$HBr$$

D. $$HI$$

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Releted Question 4

White $$P$$ reacts with caustic soda. The products are $$P{H_3}$$ and $$Na{H_2}P{O_2}.$$ This reaction is an example of

A. Oxidation

B. Reduction

C. oxidation and reduction

D. Neutralisation

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Bond dissociation enthalpy of $$E-H$$ ( $$E$$ = element ) bonds is given below. Which of the compounds will act as strongest reducing agent? Compound $$N{H_3}$$ $$P{H_3}$$ $$As{H_3}$$ $$Sb{H_3}$$ $${\Delta _{diss}}\left( {E - H} \right)/kJ\,mo{l^{ - 1}}$$ 389 322 297 255

Releted MCQ Question on Inorganic Chemistry >> P - Block Elements

The reddish brown coloured gas formed when nitric oxide is oxidised by air is

The temporary hardness of water due to calcium carbonate can be removed by adding —

Which of the following is most stable to heat

White $$P$$ reacts with caustic soda. The products are $$P{H_3}$$ and $$Na{H_2}P{O_2}.$$ This reaction is an example of

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Bond dissociation enthalpy of $$E-H$$ ( $$E$$ = element ) bonds is given below. Which of the compounds will act as strongest reducing agent?

Compound $$N{H_3}$$ $$P{H_3}$$ $$As{H_3}$$ $$Sb{H_3}$$

$${\Delta _{diss}}\left( {E - H} \right)/kJ\,mo{l^{ - 1}}$$ 389 322 297 255

Releted MCQ Question on
Inorganic Chemistry >> P - Block Elements

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P - Block Elements