Across
- 2. bacterium found in soil that helps in fixing nitrogen in leguminous plants
- 6. Hepatitis is a general term for a disease that is caused by
- 9. positive catalyst ------ the rate of reaction in a chemical reaction
- 10. Impure camphor is purified by
- 12. ray with the highest penetrating power?
- 14. Which element is found in the highest amount in the universe?
- 17. ____ is a drug or substance that makes you feel relaxed and makes your body work and react more slowly.
- 18. Purest form of iron?
- 19. NaHCO3 is chemical formula for ___________.
Down
- 1. What is the mass number of an element, the atom of which contains two Protons, two neutrons and two electrons?
- 3. ------ systems of the body primarily attacked by the HIV?
- 4. Which organ of the body produces the fluid known as bile?
- 5. Edward Jenner started ------
- 7. If the pH value of a substance is lower than 7, it would be considered as ----
- 8. ----- Power is the clean source of energy
- 10. In which part of the body does digestion of protein starts?
- 11. Sodium silicate is the chemical name of which mineral
- 13. ------- hardness of water may be removed by the addition of sodium carbonate
- 15. What is the unit of Curie?
- 16. Brain and the spinal cord are invested by membranes called: