Nerve agents are a class of:
[A] phosphorus-containing organic chemicals
[B] sulphur-containing organic chemicals
[C] osmium-containing organic compounds
[D] radon-containing organic compounds

As per the Mohs scale of mineral hardness, which of the following are soft metals?
 1. Gold
 2. Copper
 3. Diamond
 4. Thorium
Select the correct option from codes given below:
[A] 1 & 4 Only
[B] 1, 2 & 4 Only
[C] 2 & 4 Only
[D] 1, 2, 3 & 4

Consider the following pairs:
1. Strontium carbonate – Red fireworks
2. Barium chloride – Green fireworks
3. Copper chloride – Blue fireworks
4. Sodium nitrate – Yellow fireworks
 Which of the above are correct?
[A] 1 & 2 Only
[B] 2 & 3 Only
[C] 1, 2 & 3 Only
[D] 1, 2, 3 & 4

Which of the following chemicals is also known as "sweet oil of vitriol"?
[A] Diethyl ether
[B] Aluminium sulphate
[C] Sulphuric acid
[D] Iron(III) sulphate

Which of the following get corroded by open air due to oxidation?
1. Iron
2. Copper
3. Zinc
4. Aluminium
Select the correct option from the codes given below:
[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 1, 2 & 3
[D] 1, 2, 3 & 4

Consider the following compounds:
1. Water
2. Carbon dioxide
3. Carbon monoxide
 Which of the above is/are organic compound/compounds?
[A] 2 & 3 Only
[B] 1 Only
[C] 1, 2 & 3
[D] None

Consider the following statements about the Coalbed Methane:
1. It is called 'sweet gas' because of its lack of hydrogen sulphide
2. It contains very little heavier hydrocarbons such as propane or butane
 Which of the above statements is/are correct?
[A] 1 Only
[B] 2 Only
[C] Both 1 & 2
[D] Neither 1 nor 2

In which of the following states of matter the Interatomic or intermolecular distance is fixed?
[A] Solids
[B] Liquids
[C] Gases
[D] Both a and b

What do we call the strain produced in a body when the deforming force produces a change in its shape without changing its volume?
[A] Linear Strain
[B] Volumetric Strain
[C] Shearing strain
[D] Thermal Strain

What is the order of distance for Vander Wall forces to be active?
[A] 10^–6 metre
[B] 10^–7 metre
[C] 10^–8 metre
[D] 10^–9 metre

Which of the following element has the highest first ionization enthalpy?
[A] Magnesium
[B] Strontium
[C] Beryllium
[D] Barium