Foundation Level - III JEE Mock Test - 1(Chemistry)

We prefer ________ clothes in Summer

• Silk

• Cotton

• Nylon

• Poly ester

Rayon is a good example of________ fibre

• Natural fibre

• Synthetic fibre

• Semisynthetic fibre

• Animal fibre

Natural fibres are classified into how many types

• 2

• 3

• 4

• 5

________ Fabrics do not wrinkle easily

• Cotton

• Nylon

• Silk

• Polyester

_______ is used to make plus, switches and telephone cases

• Nylon

• Polyester

• Rayon

• Bakelite

_______is produced from wood pulp.

• Polythene

• Polyester

• Nylon

• Rayon

Assertion: Plastics are not environment friendly

Reason: Plastics take several years to decompose and cause pollution

• Assertion is true but the reason is false

• Assertion is false but the reason is true

• Both assertion and reason is true and reason is the correct explanation for the assertion

• Both assertion and reason is false

Which of the following is not a synthetic fibre

• Nylon

• Wool

• Polyester

• PVC

Modified natural fibres are known as_________

• Natura fibres

• Synthetic fibres

• Semisynthetic fibres

• None of these

Answer explanation

A ________ is a kind of thread which is strong and flexible enough to make clothes, ropes, nets, etc...,

• Fibre

• Fabric

• Both A and B

• None of these