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VK JAISWAL-d-BLOCK ELEMENTS-Level 1
- In comparison of ferrous salts, ferric salts are:
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- Chrome yellow is chemically known as:
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- The property, which is not characteristic of transition metals:
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- Iron is protected by coating it with a thin layer of:
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- An oxide of copper which is red in colour has the formula:
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- In a transition series, as the atomic number increases, paramagnetism
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- The formula of azurite is :
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- Oxide of metal cation which is not amphoteric ?
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- The most abundant transition metal in earth crust is :
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- CuSO(4) solution + lime is called:
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- Preparation of looking mirrors involves the use of :
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- When ammonia is added to cupric salt solution, the deep blue colour is...
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- Philosopher's wool when heated with BaO at 100^(@)C gives the compound...
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- The electron which take part in order to exhibit variable oxidation st...
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- On heating ZnCl(2).2H(2)O, the compounds obtained is
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- During estimation of oxalic acid Vs KMnO(4), self indicator is
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- Iron is rendered passive by treatment with
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- When KMnO(4) solution is added to hot oxalic acid solution, the decolo...
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- Gold dissolves in a aqua-regia forming:
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- The solubility of silver bromide in hypo solution due to the formation...
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