Home
Class 12
CHEMISTRY
On treatment with cold wate, element (A)...

On treatment with cold wate, element (A) reacted quietly, librating colourless gas (B) and solution ( C). Lithium reacted with gas (B) and giving a solid product (D) which gave effervesence with water to give basic solution (E). When `CO_(2)` was passed thorough solution ( C), an initial whit ppt (F) was formed but this redissolved forming solution (G) when more `CO_(2)` was passed. PPT (F) effervessced when moistened to Bunsen flame. (F) on heating wiith excess of carbon at `2000^(@)C` gave (H):
Metal A may be:

A

(i) and (ii).

B

(i) and (iv)

C

(iii) and (iii)

D

(i) and (iv)

Text Solution

Verified by Experts

The correct Answer is:
c
Promotional Banner

Similar Questions

Explore conceptually related problems

On treatment with cold water, an element (A) reacts readily liberating a colourless, odourless gas (B) and a solution (C). Lithium is reacted with (B) yeildng a solid product (D) which effervesce with water to give a strongely basic solution (E). When CO_(2) gas is bubbled through solution (C), a white ppt. (F) is formed but this redissolved forming solution (G) when more CO_(2) is passed. Precipitate (F) effervesced when moistened with conc. HCl and give deep red colouration to Bunsen burner flame. (F) on heating with excess of carbon at 2000^(@) C give (H). Answer the following question on the basis of above passage. Q. Metal (A) may be :

On treatment with cold water, an element (A) reacted quietly liberating a colourless, odourless gas (B) and a basic solution (C ) . Lithium reacted with (B) yielding a solid product (D) which effervesced with water to give a stongly basic solution (E) and gas (F) . When CO_(2) was bubbled through solution (C ) , initially a white ppt. (G) was formed, but this redissolved forming solution (H) when more CO_(2) was passed, precipitate (G) effervesced when moistened with conc HCl and gave a brick red colouration to the bunsen flame. When (G) was heated with carbon at 1000^(@)C , a caustic white compound (I) was formed, which when heated with N_(20 at 1000^(@)C gave a solid (J) of some commercial importance. Identify (A) to (J) and explain the reactions.

On treatment with cold water, an element (A) reacts readily liberating a colourless, odourless gas (B) and a solution (C). Lithium is reacted with (B) yeildng a solid product (D) which effervesce with water to give a strongely basic solution (E). When CO_(2) gas is bubbled through solution (C), a white ppt. (F) is formed but this redissolved forming solution (G) when more CO_(2) is passed. Precipitate (F) effervesced when moistened with conc. HCl and give deep red colouration to Bunsen burner flame. (F) on heating with excess of carbon at 2000^(@) C give (H). Answer the following question on the basis of above passage. Q. Solid (H) on hydrolysis gives a gas which on passing through ammoniated AgNO_(3) solution yields:

On treatment with cold water, an element (A) reacts readily liberating a colourless, odourless gas (B) and a solution (C). Lithium is reacted with (B) yeildng a solid product (D) which effervesce with water to give a strongely basic solution (E). When CO_(2) gas is bubbled through solution (C), a white ppt. (F) is formed but this redissolved forming solution (G) when more CO_(2) is passed. Precipitate (F) effervesced when moistened with conc. HCl and give deep red colouration to Bunsen burner flame. (F) on heating with excess of carbon at 2000^(@) C give (H). Answer the following question on the basis of above passage. Q. Solution (G) contains a salt which (i) causes permanent hardness of water (ii)can not be obtained in solid state (iii)causes temporary hardness of water (iv)can be obtained in solid state Select the correct statements :

When H_(2)S is passed through an ammonium salt solution X, a white ppt is obtained .The X can be a

When H_(2)S gas is passed into aq ZnCl_(2) solution white ppt of ZnS is obtained. Explain.

What product is formed when H_2S gas is passed through acidified KMnO_4 solution ?

A solid soluble in water on being heated gives brown gas and when dil. HCI is added to its aqueous solution, a white ppt is obtained. The solid is

When F_(2) gas reacts with H_(2)O it forms

An aqueous solution of a substance, on treatment with dilute HCl, gives a white precipitate soluble in hot water. When H_(2)S is passed through the hot acidic solution, a black precipitate is formed. The substance is: