Download App

Unit - 8.2 Water of Crystallisation and Reaction of metals with Water — CHEMISTRY STD 8 — Question

ICSE BoardEnglish MediumSTD 8CHEMISTRYUnit - 8.2 Water of Crystallisation and Reaction of metals with Water2 Marks
Question
By giving two examples define the following terms:
(c) Hygroscopic substance
✓

Answer

Hygroscopic substance:
• The absorption and adsorption of water from the surrounding environment by the matter is called hygroscopy.
• The substances which cause the hygroscopic effect are called hygroscopic substances.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "[2 Mark Question Answer]" from Unit - 8.2 Water of Crystallisation and Reaction of metals with Water→Unit - 8.2 Water of Crystallisation and Reaction of metals with Water — all question types→CHEMISTRY STD 8 question papers→ICSE Board STD 8 question papers→ICSE Board question paper generator→

Similar questions

Balance the following equations : $\ce{C + H_2SO_4} \rightarrow \ce{CO_2}+ \ce{H_2O} + \ce{SO_2}$
→
How is hydrogen gas collected? Why?
→
Write the electronic distribution of the following atoms along with the name of electron shell.
(b) Nitrogen $\left[7{ }_7 N^{14}\right]$
→
What do you understand by the following terms:
(i) allotropy
(ii) allotropic forms
→
Describe use of catalyst in a chemical reaction with suitable example.
→
State four important uses of coal.
→
State five uses of graphite.
→
State your observations when equal volumes of hydrogen and chlorine are exposed to :
(a) diffused sunlight
→
Name three biochemical catalysts found in the human body.
→
State the law of conversation of mass.
→