CHEMISTRY ONE LINER SET 23

CHEMISTRY ONE LINER SET 23

1. From which the cathode ray particles originate in a discharge tube? Cathode
 

2. Which element has two electrons in the K-shell only? Helium
 

3. Major part of CO2 is transported to respiratory surface in form of which ion? HCO3 ion
 

4. Which type of isomerism is shown by diethyl ether and methyl propyl ether? Metamerism
 

5. Which allotrope of the carbon is used in cutting and drilling? Diamond
 

6. In certain amino acids, which elements is found in addition to carbon, hydrogen, nitrogen and oxygen?
Sulphur
 

7. Which substance coated on plastic tape? Iron oxide
 

8. Which is the cloud that is dark-grey or black, found at very low height and
brings the real rain?
Nimbostratus
 

9. X210 has half life of 5 day. What is the time taken for seven-eights of sample of X210 to decay?15 days
 

10. A gas is found to have the formula (CO)n. Its vapour density is 70. What must the value of n be?
5