Explain Why: Fused Cacl2 Or Conc. H2so4 Is Used in a Desiccator.

Explain why:

Fused CaCl₂ or conc. H₂SO₄ is used in a desiccator.

One Line Answer

Fused CaCl₂ or concentrated H₂SO₄ is deliquescent in nature, i.e. it absorbs moisture, and hence, these are used in desiccators as drying agents.

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Chapter 3: Water - Exercise 3 (B) [Page 47]

Chapter 3 Water
Exercise 3 (B) | Q 13.5 | Page 47

Why is water essential for life?

Match the statements in column A with that in column B.

Column A	Column B
(a) deliquescent substance	(1) sodium bicarbonate
(b) hygroscopic substance	(2) magnesium chloride
(c) efflorestance substance	(3) conc. sulphuric acid
(d) substance causing temporary hardness	(4) washing soda

Which property of water enables it to modify the climate?

The water in a lake is called ground water.

Name a ‘pure form’ and an,‘impure form’ of water in the natural state.

Select the correct answer of the following statement:

A drying agent placed in desiccator.

Condensation results in the formation of dew on grass.

Pick from the following one chemical used to disinfect water.

In which of the following activities will you use minimum amount of water?

Write any two activities which require less than one bucket of water.