What is the pH level of blood of any respected person?
Answer: 7.35-7.45

2. Have light gas from the air?
Ans: Ammonia

3. What is the value of the absolute temperature?
Answer: (-273 degrees centigrade)

4. Is the inventor of the catalyst?
Answer: Bergius

5. The substances which provide heat by burning are called?
Answer: Fuel

6. Main: What is found in natural gas?
Answer : Methane

7. What is the gas found in gobar gas?
Answer : Methane

8. What is the main gas found in LPG gas used in cooking?
Answer: Butane

Water gas is a mixture of which two gases?
Ans: Co + H2

10. In what form is the lpg gas cylinder used in cooking?
Answer : Liquid

Which gas is the main component of L.P.G.?
Answer: Butane

12. What is the fuel used to drive a rocket?
Answer: Propellant

13. The alpha particle has two units of positive charge. Its mass is almost equal|
Answer: An atom of helium|

14. What is the effect of the conducting substances on the electrical resistance and electrical conductivity of the conducting substances when the temperature increases?
Answer: Electrical resistance increases while electrical conductivity decreases|

15. The velocity of sound in different mediums-
Answer: varies and is highest in solids|

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