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CBSE Notes 2011-2012 » IX-Science

Is Matter Around Us Pure ?

The common characteristic of suspension and colloidal solution is

Multiple choice question

The common characteristic of suspension and colloidal solution is

Which of the following statements are true for pure substances ? (i) Pure substances contain only on...

Multiple choice question

Which of the following statements are true for pure substances ?
(i) Pure substances contain only one kind of particles.
(ii) Pure substances may be compounds or mixtures.
(iii) Pure substances have the same composition throughout.
(iv) Pure substances can be exemplified by all elements other than nickel.

Rusting of an article made up of iron is called

Multiple choice question

Rusting of an article made up of iron is called

A mixture of sulphur and carbon disulphide is

Multiple choice question

A mixture of sulphur and carbon disulphide is

Tincture of iodine has antiseptic properties. This solution is made by dissolving

Multiple choice question

Tincture of iodine has antiseptic properties. This solution is made by dissolving

Which of the following are homogeneous in nature ? (i) ice (ii) wood (iii) soil (iv) air

Multiple choice question

Which of the following are homogeneous in nature ?
(i) ice (ii) wood (iii) soil (iv) air

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