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Chemistry Test 9
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Chemistry Test 9
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  • Question 1/10
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    Chemistry Quiz - 11

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    India-based Neutrino Observatory is included by the Planning Commission as a mega science project under the 11th Five-year Plan. In this context,consider the following statements:
    1. Neutrinos are chargeless elementary particles that travel close to the          speed of light. 
    2. Neutrinous are created in nuclear reactions of beta decay.
    3. Neutrinous have a negligible, but non zero mass.
    4. Trillions of Neutrinous pass through human body every second.
    Which of the statements given above are correct ?

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    Chemistry Quiz - 12

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    A pesticide which is a chlorinated hydrocarbon is sprayed on a food crop. The food chain is: Food crop-Rat -snake -Hawk. In this food chain, the highest concentration of the pesticide would accumulate in which one of the following?

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    Chemistry Quiz - 13

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    Widespread resistance of malarial parasite to drugs like chloroquine has prompted attempts to develop a malarial vaccine to combat malaria. Why is it difficult to develop an effective malaria vaccine?

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    Chemistry Quiz - 14

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    Chlorination is a process used for water-purification. The disinfecting action of chlorine is mainly due to

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    Chemistry Quiz - 15

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    If a potato is placed on a pure paper plate which is white and unprinted and put in a microwave oven,the potato heats up but the paper plate does not. This is because:

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    Chemistry Quiz - 16

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    Which one of the following is used as an explosive ?

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    Chemistry Quiz - 17

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    Which one of the following pairs of metals constitutes the lightest metal and the heaviest metal, respectively ?

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    Chemistry Quiz - 18

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    Mixture of which one of the following pairs of gases is the cause of occurrence of most of the explosions in mines ?

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    Chemistry Quiz - 19

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    Which one of the following is also called stranger Gas ?

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    Chemistry Quiz - 20

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    What are Rubies and Sapphires chemically known as ?

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