MCQ'S CLASS 9 SAI
1Glucose, fructose and sucrose are the different forms of : (a) proteins (b) fats (c) carbohydrates (d) miner
2 On dissolving starch in hot water with stirring, it becomes : (a) transparent solution (b) translucent solution (c) opaque solution (d) suspension
3 To prepare iron sulphide, by heating a mixture of iron filings and sulphur powder, we should use a : (a) Watch glass (b) China dish (c) Copper dish (d) Petri dish FeS (d) SO2
4Yellow coloured component in a mixture of Iron filing and sulphur is : (a) Iron (b) Sulphur (c) FeS (d) SO2
5 Crystals of copper sulphate are heated, they turn white. This colour change is due to :
(a) loss of copper ions (b) loss of sulphate ions (c) decomposition of copper sulphate (d) loss of water of crystallisation
1Glucose, fructose and sucrose are the different forms of : (a) proteins (b) fats (c) carbohydrates (d) miner
2 On dissolving starch in hot water with stirring, it becomes : (a) transparent solution (b) translucent solution (c) opaque solution (d) suspension
3 To prepare iron sulphide, by heating a mixture of iron filings and sulphur powder, we should use a : (a) Watch glass (b) China dish (c) Copper dish (d) Petri dish FeS (d) SO2
4Yellow coloured component in a mixture of Iron filing and sulphur is : (a) Iron (b) Sulphur (c) FeS (d) SO2
5 Crystals of copper sulphate are heated, they turn white. This colour change is due to :
(a) loss of copper ions (b) loss of sulphate ions (c) decomposition of copper sulphate (d) loss of water of crystallisation
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