Which of the following compounds are readily soluble in water?

a.  BeSO4

b.  MgSO4

c.  BaSO4

d.  SrSO4

Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)

Subtopic:  Preparations, Properties & Uses of S Block Elements |
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When zeolite, which is hydrated sodium aluminium silicate is treated with hard water, the sodium ions are exchanged with which of the following ion(s)?

a.  H+ ions

b.  Mg2+ ions

c.  Ca2+ ions

d.  SO42- ions

Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)

Subtopic:  Compounds of Ca and Na -Preparations, Properties & Uses |
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Identify the correct formula of halides of alkaline earth metals from the following.

1.  BaCl2·2H2O

2.  BaCl2·4H2O

3.  CaCl2·6H2O

4.  SrCl2·4H2O

Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, c)

Subtopic:  Physical Properties | Reasoning Questions |
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Choose the correct statements from the following.

a.  Beryllium is not readily attacked by acids because of the presence of an oxide film on the surface of the metal

b.  Beryllium sulphate is readily soluble in water as the greater hydration enthalpy of Be2+ overcomes the lattice enthalpy factor

c.  Beryllium exhibits coordination number more than four

d.  Beryllium oxide is purely acidic in nature

Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)

Subtopic:  Preparations, Properties & Uses of S Block Elements |
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Which of the following are the correct reasons for the anomalous behavior of lithium?

a.  Exceptionally small size of its atom

b.  Its high polarising power

c.  It has high degree of hydration

d.  Exceptionally low ionisation enthalpy

Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)

Subtopic:  Preparations, Properties & Uses of S Block Elements |
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Match the elements given in Column I with the properties mentioned in Column II.

Column I

Column II

A. Li

1. Insoluble sulphate 

B. Ca

2. Strongest monoacidic base

C. Na

3. Most negative EΘ value among alkali metals

D. Ba 

4. Insoluble oxalate 

 

Codes

          A           B          C           D

1.       3          2          4           1

2.       1          2           3           4

3.       1          4           3           2

4.       3          4           2           1

Subtopic:  Compounds of Ca and Na -Preparations, Properties & Uses |
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Match the compounds given in Column I with their uses mentioned in Column II.

Column I

Column II

A. CaCO3

1. Dentistry, ornamental work

B. Ca(OH)2

2. Manufacture of sodium carbonate from caustic soda

C. CaO

3. Manufacture of high-quality papers

D. CaSO4

4. Used in whitewashing

Codes

          A          B          C           D

1.       3          4          2           1

2.       1          2           3           4

3.       1          4           3           2

4.       4          1           3           2

Subtopic:  Compounds of Ca and Na -Preparations, Properties & Uses |
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Match the elements given in Column I with the color they impart to the flame given in Column II.

Column I

Column II

A. Cs

1. Apple green

B. Sr

2. Blue

C. Ba

3. Brick red

D. Ca

4. Crimson red

Codes

          A           B          C           D         

1.       1          4          2            3          

2.       2          4           1           3          

3.       1          4           3           2          

4.       4          1           3           2         

Subtopic:  Physical Properties |
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Assertion: The carbonate of lithium decomposes easily on heating to form lithium oxide and CO2.

Reason: Lithium being very small in size polarises large carbonate ions leading to the formation of more stable Li2O and CO2.

1.  Both assertion and reason are true and the reason is the correct explanation of assertion.

2.  Both assertion and reason are true and the reason is not the correct explanation of assertion.

3.  Assertion is true but the reason is false.

4.  Assertion is false but the reason is true.

Subtopic:  Chemical Properties |
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Assertion: Beryllium carbonate is kept in the atmosphere of carbon dioxide.

Reason: Beryllium carbonate is unstable and decomposes to give beryllium oxide and carbon dioxide.

1.  Both assertion and reason are true and the reason is the correct explanation of assertion.

2.  Both assertion and reason are true and the reason is not the correct explanation of assertion.

3.  Assertion is true but the reason is false.

4.  Assertion is false but the reason is true. 

Subtopic:  Chemical Properties |
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