Chemistry - Single MCQs (Page 70)

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Q691. pH value of water is ?...Q692. Which of the following is not a type of element ?...Q693. Which of the following is also known as Laughing gas ?...Q694. The number of electrons and neutrons of an element is 18 and 20 respectively. It...Q695. Who is regarded as father of modern chemistry?...Q696. Which of the following gases is lighter than air?...Q697. Caustic Soda is ?...Q698. Bauxite is an ore of ?...Q699. The most electronegative element among the following is ?...Q700. The number of moles of solute present in 1 kg of a solvent is called its ?...