GK Chemistry 2

General Knowledge – Chemistry

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1. A hydrogen-inflated polythene balloon is released from the surface of the earth. As the balloon rises to an altitude up in the atmosphere, it will


2. Which one of the following statements is NOT correct?


3. Consider the following statements: The purpose of adding sodium sulphate and sodium silicate to the detergent in a washing powder is 1. To keep washing powder dry 2. To maintain the alkalinity of the powder Which of the statements is/are correct?


4. Which of the following is produced during the formation of photochemical smog?


5. Consider the following statements: 1. Steam at 100 degree C and boiling water at 100 degree C contains same amount of heat. 2. Latent heat of fusion of ice is equal to the latent heat of vaporization of water. 3. In an air-conditioner, heat is extracted from the room-air at the evaporator coils and is rejected out at the condenser coils. Which of these statements is/are correct?


6. Which of the following elements is not present in stainless steel


7. Regarding the atom of a chemical element, the magnetic quantum number refers to


8. Which of the following gas is used in cigarette lighters


9. Which one of the following statement is correct?


10. Select the one which is not a mixture


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