Among the following, which has minimum solubility in water?
1. KOH
2. CsOH
3. LiOH
4. RbOH
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyCommon table salt becomes moist and does not pour easily in rainy season because:
1. It contains magnesium chloride.
2. It contains magnesium carbonate.
3. It melts slightly in rainy season.
4. Sodium chloride is hygroscopic.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA mixture of Al(OH)3 and Fe(OH)3 can be separated easily by treating it with:
1. HCl
2. NH4OH
3. HNO3
4. NaOH
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAlkali metals are characterised by:
1. Good conductors of heat and electricity.
2. High melting points.
3. Low oxidation potentials.
4. High ionisation potentials.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyExcess of dilute sodium hydroxide solution is gradually added with shaking to an aqueous solution of zinc sulphate. What would you observe?
1. A light blue precipitate is first formed which finally dissolves to give a deep blue solution
2. A white precipitate appears which dissolves to give a colourless solution.
3. A white precipitation is formed which does not dissolve
4. No change takes place and the solution remains clear
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich has lowest thermal stability?
1. Li2CO3
2. Na2CO3
3. K2CO3
4. Rb2CO3
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAn alkali metal that reacts with nitrogen to form nitride is -
1. Li
2. Na
3. Cs
4. None of the above
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyCaustic soda is:
1. Efflorescent
2. Deliquescent
3. Hygroscopic
4. Oxidant
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe most basic oxide among the following is:
1. Na2O
2. BaO
3. As2O3
4. Al2O3
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPearl ash and caustic potash are chemically:
1. K2CO3 and KOH
2. KOH and K2CO3
3. Na2CO3 and KOH
4. Na2CO3 and NaOH
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology