Q. When phosphorus reacts with oxygen, it gives off clouds of

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Q. The sodium burns with the flame of color

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Q. Magnesium and Aluminum burns with bright white flames and reacts vigorously when heated with

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Q. Sodium reacts vigorously with

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Q. Sulfur trioxide is obtained by oxidation of

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Q. When sodium (Na) is heated and added to chlorine gas (Cl₂) jar it forms

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Q. Blue flame in a gas jar of oxygen gas (O₂) is burning through powder of

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Q. The fumes of sulfur dioxide (SO₂) are

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Q. Terbium (Tb) atomic mass of 159 belongs to block

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Q. The element which perfectly matched the qualities which Mendeleev predicted in his Periodic table was

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Q. The recurrence of the same pattern in the periodic table is called its

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Q. For yet undiscovered elements Periodic table has

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Q. The Russian chemist Dmitri Mendeleev in 1869 devised the

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Q. The number of major groups which are vertical numbers is

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Q. Lysine and arginine are left behind in peptides bonds and are known as

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Q. Hydrolysis of peptides is aided through the enzyme

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Q. The substrate must have the correct

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Q. Of the given series of actions, action performed first is the

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Q. Enzyme activity refers to the number of

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Q. The turnover number refers to the number of

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