Solutions
9th Chemistry Chapter 6 solved exercise MCQs
- Mist (دھند) is an example of solution :
(a) liquid in gas 🗸
(b) gas in liquid
(c) solid in gas
(d) gas in solid
2. Which one of the following is a ‘ liquid in solid ‘ solution ?
(a) sugar in water
(b) butter 🗸
(c) opal
(d) fog
3. Concentration is ratio of :
(a) solvent to solute
(b) solute to solution 🗸
(c) solvent to solution
(d) both a and b
4. Which one of the following solution contains more water ?
(a) 2 M
(b) 1 M
(c) 0.5 M
(d) 0.25 M 🗸
5. A 5 percent (w/w) sugar solution means that :
(a) 5 g of sugar is dissolved in 90 g of water
(b) 5 g of sugar is dissolved in 100 g of water
(c) 5 g of sugar is dissolved in 105 g of water
(d) 5 g of sugar is dissolved in 95 g of water 🗸
6. If the solute-solute forces are strong enough than those of solute-solvent forces . The solute :
(a) dissolves readily
(b) does not dissolve 🗸
(c) dissolves slowly
(d) dissolves and precipitates
7. Which one of the following will show negligible effect of temperature on its solubility ?
(a) KCl
(b) KNO3
(c) NaNO3
(d) NaCl 🗸
8. Which one of the following is heterogeneous mixture ?
(a) milk
(b) ink
(c) milk of magnesia 🗸
(d) sugar solution
9. Tyndall effect is shown by :
(a) sugar solution
(b) paints
(c) jelly 🗸
(d) chalk solution
10. Tyndall effect is due to :
(a)blockage of beam of light
(b) non-scattering of beam of light
(c) scattering of beam of light 🗸
(d) passing through beam of light
11. If 10 cm3 of alcohol is dissolved in 100 g of water , it is called :
(a) % w/w
(b) % w/v
(c) % v/w 🗸
(d) % v/v
12. When a saturated solution is diluted it turns into :
(a) supersaturated solution
(b) saturated solution
(c) a concentrated solution
(d) unsaturated solution 🗸
13. Molarity is the number of moles of solute dissolved in :
(a) 1 kg of solution
(b) 100 g of solvent
(c) 1 dm3 of solvent
(d) 1 dm3 of solution 🗸
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