For every action, there is an equal and opposite reaction, is Newton's
1). First law
2). Second law
3). Third law
4). Fourth law
2. What is the common name of Sodium Bicarborate?
3. Which of the following has no unit?
4. The polymerisation of which often following is used in manufacturing of polythene in industry ?
5. Periodic table contains how many groups
6. The purest form of water is
7. Gas used for artificial ripening of fruits is :
8. What is the element that is in the highest percentage in the composition of the earth ?
9. Terylene is a condensation polymer of ethylene glycol and which acid?