The correct statement among the following regarding CsBr3 is -

1. It is a covalent compound.

2. It contains Cs2+ and Br- ions.

3. It contains Cs+, Br- and Br2 lattice molecules.

4. It contains Cs+ and Br3- ions.

Subtopic:  Chemical Properties | Compounds of Ca and Na -Preparations, Properties & Uses |
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Hypo is chemically:

1. Na2S2O3.2H2O

2. Na2S2O3.3H2O

3. Na2S2O3.4H2O

4. Na2S2O3.5H2O

Subtopic:  Preparations, Properties & Uses of S Block Elements |
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If NaOH is added to an aqueous solution of Zn2+ ions, a white precipitate appears and on adding axcess NaOH, the precepitate dissolves. In this solution zinc exists in the:

1. cationic part

2. anionic part

3. both in cationic and anionic parts

4. there is no zinc left in the solution

Subtopic:  Preparations, Properties & Uses of S Block Elements |
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Brine is chemically:

1. conc. solution of Na2CO3

2. conc. solution of Na2SO4

3. conc. solution of NaCl

4. conc. solution of alum

Subtopic:  Physical Properties | Chemical Properties |
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NO2 is obtained by heating:

1. CsNO3

2. KNO3

3. LiNO3

4. NaNO3

Subtopic:  Chemical Properties |
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Soda lime is:

1. Na2CO3 + CaO

2. NaOH + NaHCO3

3. NaOH + CaO

4. NaH + Na2CO3

Subtopic:  Preparations, Properties & Uses of S Block Elements |
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Molecular formula of Glauber's salt is :

1. MgSO4·7H2O

2. CuSO4·5H2O

3. FeSO4·7H2O

4. Na2SO4·10H2O

Subtopic:  Preparations, Properties & Uses of S Block Elements |
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Among the following, which has minimum solubility in water?

1. KOH

2. CsOH

3. LiOH

4. RbOH

Subtopic:  Preparations, Properties & Uses of S Block Elements |
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Common 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.

Subtopic:  Physical Properties |
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A  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

Subtopic:  Physical Properties |
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