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UNITED BOOK HOUSE-HIGHER SECONDARY EXAMINATION 2019-EXERCISE
- How can a colloidal solution and true solution of the same colour be d...
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- Arrange Li+,Na+ and Rb+ ions in the ascendign order of their molar ion...
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- What is the unit of electro-chemical equivalent?
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- Answer the following questions (Alternatives are to be noted): KBr und...
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- What is azeotropic mixture? Can it be considered as ideal solution?
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- Write two differeneces between physisorption and chemisorption.
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- What is peptisation? Give one example.
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- Mention two differences between bleaching action of SO2 and Cl2.
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- Which of the halogen hydracids forms bi-salts ? Write reasons.
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- Which type of isomerism is shown by the two complexes: [Co(NH3)5SO4] B...
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- Write the name of monomer units of Dacron and mention one use of it.
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- Which type of stoichimetric defects is shown by Ag Br crystal?
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- Chromium (atomic-mass=52) metal has body-entred cubic structure. The r...
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- What do you mean by packing fraction of cubic unit cell?
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- Calculate packing fraction of face-centred cubic unit cell.
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- What is the vapour pressure of purewater at 100^@C temperature?
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- 12 g of a solid solute is dissolved in 90 gm pure water. Vapour pressu...
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- Write cell reaction and calculate electrical work obtained from the fo...
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- Write composition of copper matte.
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- Write balanced equations for the reactions involved in the extraction ...
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