Chemistry - Mock Test 8

Question 71

Rusting Of Iron Takes Place Due To ?

A) Oxidation B) Carbonation C) Exfoliation D) Corrosion

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Question 72

Milk Tastes Sour When Kept In The Open For Sometime Due To The Formation Of?

A) Lactic Acid B) Citric Acid C) Acetic Acid D) Carbonic Acid

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Question 73

Which Of The Following Is A Super Cooled Liquid ?

A) Ice Cream B) Teflon C) Glass D) Mercury

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Question 74

The Chemical Used In Embalming Biological Materials Is ?

A) Formaldehyde In Methanol B) Formaldehyde In Water C) Ethyleneglycol D) Gaseous Formaldehyde

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Question 75

The Acid Rain Destroys Vegetations Because It Contains ?

A) Nitric Acid B) Ozone C) Carbon Monoxide D) Sulphuric Acid

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Question 76

The Ratio Of Pure Gold In 18 Carat Gold Is ?

A) 60% B) 75% C) 80% D) 90%

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Question 77

The Element With Highest First Ionisation Energy Is ?

A) Helium B) Hydrogen C) Lithium D) Sodium

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Question 78

The Temperature Of Oxyacetylene Flame Is Around ?

A) 1500°C B) 3200°C C) 4000°C D) 2800°C

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Question 79

German Silver Is An Alloy Of ?

A) Copper Nickel And Silver B) Silver Copper And Aluminium C) Zinc Silver And Copper D) Zinc Copper And Nickel

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Question 80

Magnesium Is An Alloy Of ?

A) Aluminum And Zinc B) Manganese And Magnesium C) Magnesium And Tin D) Aluminum And Magnesium

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