Chemistry
When Mr. Z.A. Bhutto launched a new constitution in the country?
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Third isotope hydrogen:?
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Brass gets discoloured in air because of the presence of which of the following gases in air ________ ?
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In which of the following cities Indian National Congress was found?
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Solid to liquid change except________________?
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Isotopes of an element have the same number of _______?
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An element that does not occur in nature but can be produced artificially is__________?
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Which of the following is the lightest substance known?
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Which of the following is the major constituent of LPG?
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