Question 2 :
choose the correct pair of metal And non-metal, existing in liquid state at room temperature

Question 3 :
The reactivity of aluminium, zinc, iron and copper towards water is in the following order: Choose the correct option

Question 6 :
Non–Metals are Used in our daily life. Select correct order Column A Column B 1. Chlorine (i) Fertilizers 2. Oxygen (ii) Antiseptic 3. Nitrogen (iii) Breathing 4. Iodine (iv) Bleaching

Question 13 :
Match the column A correctly with the column B. Column A Column B 1. Nylon i. fabrics do Not wrinkle easily 2. Rayon ii. Used to make non-stick cookwares 3. Teflon iii. Used for making parachutes 4. polyester iv. prepared by using wood pulp The correct sequence is

Question 16 :
which of the following non-metal reacts And catches fire on exposure to air?

Question 18 :
_______ fibre was Used for making parachutes during the second world war.

Question 22 :
Metals react with oxygen on burning to produce metal oxides which are

Question 27 :
which of the following is a good conductor of electric current?

Question 29 :
The process of combining monomer units into a large polymer is called

Question 31 :
It is advisable not to wear clothes made of synthetic fibre while working near fire because

Question 36 :
Nylon was first made in ______ from coal, water And air

Question 37 :
The elements which have properties of both metals And non-metals are called