JEE Chemistry General Principles and Processes Of Isolation Of Elements MCQs Set B

    Question: In the extraction of copper from its sulphide ore, the metal is finally obtained by the reduction of cuprous oxide with a) Copper (I) sulphide (Cu2S) b) Sulphur dioxide (SO2) c) Iron sulphide (FeS) d) Carbon monoxide (CO) Answer: …

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JEE Chemistry General Principles and Processes Of Isolation Of Elements MCQs Set A

    Question: Which one of the following is an ore of silver ? a) Argentite b) Stibnite c) Bauxite d) Haematite Answer: Argentite   Question: Cinnabar is an ore of a) Hg b) Cu c) Pb d) Zn Answer: Hg   Question:…

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JEE Chemistry Classification Of Elements and Periodicity In Properties MCQs Set B

    Question: Consider the following statements: (i) Atomic radii decreases across a row of the periodic table when we move from left to right. (ii) Atomic radii increases down the column as we move from top to bottom. (iii) Although the order of elements is…

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JEE Chemistry Classification Of Elements and Periodicity In Properties MCQs Set A

    Question: Modern periodic table is based on the atomic number of the elements. The experiment which proved the significance of the atomic number was a) Mosley’s work on X-ray spectra b) Mulliken’s oil drop experiment c) Bragg’s work on X-ray…

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