Question

Q2. Fill in the blanks :- [10]

1. Diamond shine because of high _____________.

2. Carbon dioxide turns ________ blue litmus red .

3. Water gas is _________.

4. The formula of sodium thiosulphate is _______

5. Radioactive isotopes of carbon is ________ .

6. Sugar charcoal is obtained by ________ of sugar with concentrated sulphuric acid .

7. The decomposition reaction brought about by light is called__________.

8. ______ is the hardest and purest form of carbon .

9. When vinegar is poured on baking soda then bubbles of _______ gas form quickly .

10. ______and ______ are the two major allotropes of carbon .​

Answer 1

Explanation:

dunno.... so sorry friend

Answer 2

Answer:

1. due to its despirtion, reflection of light and totall internal reflection
2. due to its acidic nature .
3. Water gas is a mixture of carbon monoxide and hydrogen produced from synthesis gas
4. the formula of sodium thiosulphate is Na2S2O3
5. Radiocarbon, is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.
6. Sugar charcoal is formed by the destructive distillation of cane sugar. It is also prepared by the dehydration of sugar in the presence of concentrated sulphuric acid (H2SO4)
7. When decomposition reaction is carried out by light it is called Photochemical decomposition.
8. Synthetic nanocrystalline diamond is the hardest material known.
9. carbon dioxide.
10. graphite and diamond

Explanation:

9.When baking soda and vinegar are put together, they create a chemical reaction that fizzes a lot, but also forms a gas called carbon dioxide.