Chemistry Multiple choice questions

1. What is jeweler's rouge

[A] Ferric carbonate

[B] Ferrous carbonate

[C] Ferrous oxide

[D] Ferric oxide

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2. Several blocks of the megnesium are fixed to the bottom of a ship to ?

[A] Prevent punture by undersea rocks

[B] Keep away the sharks

[C] Prevent action of water and salts

[D] Make the ship lighter

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3. What is the pH of pure water ?

[A] 1

[B] 7

[C] 5

[D] 12

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4. What type of reaction is carried out by the lipase in the digestion of fats ?

[A] Reduction

[B] Dehydration

[C] Hydrolysis

[D] Calcification

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5. At which one of the following does carbon occur in its purest form in nature ?

[A] Diamond

[B] Graphite

[C] Carbon black

[D] Coal

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6. Which one of the following carbohydrates is used for silvering of mirror ?

[A] Sucrose

[B] Maltose

[C] Fructose

[D] Glucose

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7. Which one of the following compounds was responsible for the epidemic form of disease called 'Minamata Disease' ?

[A] A lead compound

[B] A mercury compound

[C] A sulphur compound

[D] A fluorine compound

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8. Which one of the following pesticide is applied to the foundation of buildings to prevent termites ?

[A] Aldrin

[B] Malathion

[C] Atrazine

[D] Carbaryl

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9.

Bronze is an alloy of ?

[A] Copper and Zinc

[B] Copper and tin

[C] Tin and Zinc

[D] Iron and Zinc

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10.

The iron layered with zinc is called ?

[A] Pig iron

[B] Cost iron

[C] Galvanized iron

[D] Steel

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Chemistry Multiple choice questions

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