Which of the alkali metal chloride (MCl) forms its dehydrate salt (MCl.2H2O) easily?

1. LiCl

2. CsCl

3. RbCl

4. KCl

Subtopic:  Reasoning Questions |
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Crude sodium chloride obtained by crystallization of brine solution does not contain-

1. MgSO4

2. Na2SO4

3. MgCl2

4. CaSO4

Subtopic:  Compounds of Ca and Na -Preparations, Properties & Uses |
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Which of the following is an amphoteric hydroxide?

1.  BeOH2

2.  SrOH2

3.  CaOH2

4.  MgOH2

Subtopic:  Reasoning Questions |
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The correct order of the mobility of the alkali metal ions in aqueous solution is :

1. Li+>Na+>K+>Rb+

2. Na+>K+>Rb+>Li+

3. K+>Rb+>Na+>Li+

4. Rb+>K+>Na+>Li+

Subtopic:  Chemical Properties |
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In which of the following the hydration energy is higher than the lattice energy?

1. BaSO4

2. MgSO4

3. CaSO4

4. SrSO4

Subtopic:  Chemical Properties | Compounds of Ca and Na -Preparations, Properties & Uses |
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The correct order of increasing thermal stability of K2CO3, MgCO3, CaCO3 and BeCO3 is:

1. BeCO3<MgCO3<K2CO3<CaCO3

2. BeCO3<MgCO3<CaCO3<K2CO3

3. MgCO3<BeCO3<CaCO3<K2CO3

4. K2CO3<MgCO3<CaCO3<BeCO3

Subtopic:  Chemical Properties |
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In the case of alkali metals, the covalent character decreases in the order

1. MCl>Ml>MBr>MF

2. MF>MCl>MBr>Ml

3. MF>MCl>Ml>MBr

4. Ml>MBr>MCl>MF

Subtopic:  Chemical Properties |
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An oxide that does not react with sodium hydroxide is:
1. B2O3
2. CaO
3. SiO2
4. BeO
Subtopic:  Compounds of Ca and Na -Preparations, Properties & Uses |
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Which one of the following compounds is a peroxide?

1. KO2

2. BaO2

3. MnO2

4. NO2

Subtopic:  Chemical Properties |
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Among the given options, what is the property of the alkaline earth metals that increases with their atomic number?
1. Solubility of their hydroxides in water
2. Solubility of their sulphates in water
3. Ionization energy
4. Electro-negativity

Subtopic:  Chemical Properties |
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