The sticky substance formed when soap is added to hard water is ______.

रिकाम्या जागा भरा

The sticky substance formed when soap is added to hard water is scum.

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Hydrated and Anhydrous Substances

या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?

पाठ 8: Water - Objective Type Questions [पृष्ठ १२१]

पाठ 8 Water
Objective Type Questions | Q 1.8 | पृष्ठ १२१

Give one word for the following statement:

A property due to which a substance absorbs water without dissolving.

The substance that can remove hydrogen and oxygen atoms in the ratio of 2:1(in the form of water) from the compound.

What are drying or desiccating agents? Give examples.

What are hydrous substances? Explain with examples.

Name three methods by which hydrous substances can be made anhydrous.

Select the correct word from the words in option to complete the sentence:

Efflorescence occurs when the vapour pressure of the hydrated crystals is ____ than the vapour pressure of the atmospheric humidity.

Give a reason for the following:

Heating a hydrated copper sulphate crystal is deemed a chemical change.

Match the following

The molecular formula of green vitriol is MgSO₄.7H₂O.

Define Hydrated salt.