Chemistry - Comprehensive Mock Test 2

Question 11 Easy

Which element has the atomic number 3?

A) Boron B) Lithium C) Beryllium D) Sodium

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Question 12 Medium

Fe has 26 protons in its nucleus. What are the number of electrons in Fe²+ ( II ) ion?

A) 24 B) 26 C) 28 D) 13

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Question 13 Medium

Which of the following elements has the lowest melting point?

A) Xenon B) Iodine C) Barium D) Magnesium

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Question 14 Medium

The Chemical formula of Ammonium nitrate is _________

A) (NH2)2NO3 B) NH4NO3 C) NH4(NO3)2 D) NH2NO3

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Question 15 Easy

The Energy Of The Sun Is Mainly Due To ?

A) Heat B) Nuclear Fusion C) Radioactivity D) Nuclear Fission

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Question 16 Easy

Milk Is A Colloidal System In Which ?

A) Fat Is Dispersed In Water B) Fat And Water Are Dispersed In Each Other C) Fat Is Dissolved D) Water Is Dispersed In Fat

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Question 17 Medium

Diamonds Are Glittering And Attractive Because Light Incident On Them Undergoes ?

A) Highest Refraction B) Multiple Internal Reflections C) Multiple Surface Reflections D) Hundred Percent Transmission

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Question 18 Easy

Which Of These Acids Is Not Organic In Origin?

A) Lactic Acid B) Sulphuric Acid C) Citric Acid D) Oxalic Acid

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Question 19 Easy

The Bhopal Tragedy Was Caused By The Gas ?

A) Chlorine B) Methyl Isocyanate C) Carbon Monoxide D) Phosgene

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Question 20 Medium

The Gas Which Is Mainly Responsible For The Greenhouse Effect Is ?

A) Carbon Monoxide B) Oxygen C) Ozone D) Carbon Dioxide

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