Alkali and alkaline earth metals cannot be obtained by chemical reduction method because they are the strongest :
1. Oxidizing agents.
2. Reducing agents.
3. Hydrating agents.
4. Drying agents.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAn amphoteric hydroxide among the following is :
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe incorrect statement among the following is-
1. Sodium metal is used in organic qualitative analysis.
2. Sodium carbonate is soluble in water and it is used in inorganic qualitative analysis.
3. Potassium carbonate can be prepared by the solvay process.
4. Aq. solution of potassium bicarbonate is a weak base.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyBe and Mg did not give flame colour because:
1. Energy released by excited electron falls in visible region.
2. Energy released by excited electron does not fall in visible region
3. s-s transition.
4. Charge transfer.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe incorrect statement among the following is -
1. Li+ has minimum degree of hydration among alkali metal cations.
2. The oxidation state of K in KO2 is +1
3. Sodium is used to make Na / Pb alloy.
4. MgSO4 is readily soluble in water.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe cation of alkali metals are found as M(H2O)+n in H2O.
The value of 'n' is maximum for -
1. Na+
2. K+
3. Rb+
4. Li+
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe correct statement(s) among the following options is/are:
1. | BeO is almost insoluble but BeSO4 is soluble in water. |
2. | BaO is soluble but BaSO4 is insoluble in water. |
3. | LiI is more soluble than KI in ethanol. |
4. | All of the above. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology