Metallic elements are described by their standard electrode potential, fusion enthalpy, atomic size, etc. The alkali metals are characterized by which of the following properties?

a. High boiling point

b. High negative standard electrode potential

c. High-density

d. Large atomic size

1. (a, b)
2. (b, c)
3. (c, d)
4. (b, d)

Subtopic:  Physical Properties | Preparations, Properties & Uses of S Block Elements |
 64%
From NCERT
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Several sodium compounds find use in industries. Which of the following compounds are used in the textile industry?

a. Na2CO3

b. NaHCO3

c. NaOH

d. NaCl

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

Subtopic:  Compounds of Ca and Na -Preparations, Properties & Uses |
 60%
From NCERT
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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 |
 77%
From NCERT
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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 |
 77%
From NCERT
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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 |
 65%
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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 |
 85%
From NCERT
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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 |
 67%
From NCERT
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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

Options:  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 |
 72%
From NCERT
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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

Options:   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 |
 54%
From NCERT
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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

Options:  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 |
 84%
From NCERT
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