What would you observe if excess of dilute NaOH solution is added and shaken with an aqueous solution of aluminium chloride?

1. A permanent white precipitate is formed immediately

2. No change at first but a white precipitate is formed on standing

3. A white precipitate is formed which later dissolves

4. A green precipitate which turns red on standing in air

Subtopic:  Preparations, Properties & Uses of S Block Elements |
 55%
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NEET 2023 - Target Batch - Aryan Raj Singh
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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 |
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

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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NEET 2023 - Target Batch - Aryan Raj Singh
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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 |
 67%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

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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NEET 2023 - Target Batch - Aryan Raj Singh
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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 |
 62%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh

Caustic soda is:

1. Efflorescent

2. Deliquescent

3. Hygroscopic

4. Oxidant

Subtopic:  Preparations, Properties & Uses of S Block Elements |
 65%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

Pearl ash and caustic potash are chemically:

1. K2CO3 and KOH

2. KOH and K2CO3

3. Na2CO3 and KOH

4. Na2CO3 and NaOH

Subtopic:  Preparations, Properties & Uses of S Block Elements |
 51%
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NEET 2023 - Target Batch - Aryan Raj Singh
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The products of the electrolysis of aqueous solution of common salt are:

1. Na + Cl2

2. H2 + O2

3. NaOH + H2 + Cl2

4. NaOH + Cl2 + O2

Subtopic:  Physical Properties | Preparations, Properties & Uses of S Block Elements |
 73%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

Tin dissolves in boiling caustic soda solution because of the formation of soluble:

1. Sn(OH)2

2. Sn(OH)4

3. Na2SnO3

4. none of these

Subtopic:  Preparations, Properties & Uses of S Block Elements |
 51%
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NEET 2023 - Target Batch - Aryan Raj Singh
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