Home
Class 12
CHEMISTRY
When a white powder (A) is strongly heat...

When a white powder (A) is strongly heated, it gives of a colourless, odourless gas (B) which turns lime water milky (C) and if the passage of this gas is continued the milkiness disappears and gives a solution (D). The solid residue (E) is yellow when hot, but turns white on cooling. Idnetify (A) to (E) with help of the equations.

Text Solution

AI Generated Solution

To solve the problem step by step, we will identify each component (A to E) based on the information provided in the question and the chemical reactions involved. ### Step 1: Identify the white powder (A) The question states that a white powder (A) is strongly heated and produces a colorless, odorless gas (B). The solid residue (E) is yellow when hot and turns white on cooling. Based on the description, the white powder (A) is likely **Zinc Carbonate (ZnCO3)**. ### Step 2: Identify the gas (B) ...
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • PRINCIPLES OF QUALITATIVE ANALYSIS

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (SECTION G)|5 Videos

  • POLYMERS

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION-D)|13 Videos

  • REDOX REACTIONS

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT SECTION - D|10 Videos

Similar Questions

Explore conceptually related problems

On treated with dilute H_(2)SO_(4) , a salt gives a gas which turns lime water milky. The salt can be

On heating, a salt gives a gas which turns lime water milky and an acidified dichromate solution green. The salt may be:

Identify (A) to (D) in following steps and give chemical equations: (a) A white amorphous powder (A) on strongly heating gives a colourless noncombustible gas (B) and solid (C). (b) The gas (B) turns lime water milky and disappears with the passage of excess of gas. (c) The solution of (C) in dilute HCI gives a white precipitate with an aqueous solution of KdFeCN). (d). The solution of (A) gives white ppt. (D) on passing H_(2)S in presence of NH_(4) OH.

A white amorphous powder (A) when heated gives a colourless gas (B), which turns lime water milky and the residue (C) which is yellow when hot but white when cold. The residue (C) dissolves in dilute HCl and the resulting solution gives a white precipitate on addition of potassium ferrocyanide solution. (A) dissolves in dilute HCl with the evolution of a gas which is identical in all respects with (B). The solution of (A) as obtained above gives a white precipitate (D) on addition of excess of NH_(4)OH and on passing H_(2)S . Another portion of this solution gives initially a white precipitate (E) on addition of NaOH which dissolves in excess of it. Compounds (A) to (E) are identified as:

Which of the following substance on being heated will give a gas that does not turns lime water milky :-

A solution reacts with crushed egg-shells to give a gas that turns lime-water milky. The solution contains

When carbon dioxide is bubbled into lime water, the lime water turns milky and when bubbled in excess the milkiness disappears'. Give balanced equations to support the statement.

A neutral white sodium salt (A) on heating liberates a gas (B), leaving a highly alkaline reside (C ). Thegas (B) is colourless, odourless and turns lime water milky. (A) is

An orange solid (A) on heating gave a green residue (B) , colourless gas ( C) and water vapour. The dry gas ( C) on passing over heated magnesium gave a white solid (D).(D) on reaction with water have a gas ( E) which formed dense white fumes with HCl . Indentify (A) to ( E) and give the reactions.

A green house effect causing gas which turns lime water milky. When is treated with carbon gives compound B. which of the following statements is not correct regarding B?

Home
Profile