Chemistry
Grade-7
Easy
Question
Match the statements of Column A with those of Column B.
- (i) – (b), (ii) – (d), (iii) – (a), (iv) – (c)
- (i) – (b), (ii) – (c), (iii) – (d), (iv) – (a)
- (i) – (c), (ii) – (a), (iii) – (d), (iv) – (b)
- (i) – (d), (ii) – (a), (iii) – (b), (iv) – (c)
Hint:
(i) - (b), (ii) - (c), (iii) - (d), (iv) - (a)
The correct answer is: (i) – (b), (ii) – (c), (iii) – (d), (iv) – (a)
- Fog and mist are examples of aerosols with a liquid dispersed phase and a gas dispersing medium. Aerosols with a solid dispersed phase and a gas dispersing medium include smoke and automotive exhaust.
- The gel is a colloid with a liquid dispersion phase and a solid dispersion medium. A gel is something like butter.
- The terms sponge and foam are sometimes used interchangeably, however they are not synonymous. If you purchase foam for a gasket application, you may discover joint leakage. If you use sponge for cushioning, you may not obtain the protection you wanted.
- Solid soils include black diamonds, vision glasses, photochromatic glasses, and ruby stone.
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