NEET Questions Solved


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

(a) A permanent white precipitate is formed immediately

(b) No change at first but a white precipitate is formed on standing

(c) A white precipitate is formed which later dissolves

(d) A green precipitate which turns red on standing in air

Concept Videos :-

#3 | NaOH (Caustic Soda)
#4 | Na2CO3 (Sodium Carbonate), Gypsum & POP

Concept Questions :-

Some Important Compounds of Na
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Hypo is chemically:

(a) Na2S2O3.2H2O

(b) Na2S2O3.3H2O

(c) Na2S2O3.4H2O

(d) Na2S2O3.5H2O

Concept Videos :-

#3 | NaOH (Caustic Soda)
#4 | Na2CO3 (Sodium Carbonate), Gypsum & POP

Concept Questions :-

Some Important Compounds of Na
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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:

(a) cationic part

(b) anionic part

(c) both in cationic and anionic parts

(d) there is no zinc left in the solution

Concept Videos :-

#3 | NaOH (Caustic Soda)
#4 | Na2CO3 (Sodium Carbonate), Gypsum & POP

Concept Questions :-

Some Important Compounds of Na
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Soda lime is:

(a) Na2CO3 + CaO

(b) NaOH + NaHCO3

(c) NaOH + CaO

(d) NaH + Na2CO3

Concept Videos :-

#3 | NaOH (Caustic Soda)
#4 | Na2CO3 (Sodium Carbonate), Gypsum & POP

Concept Questions :-

Some Important Compounds of Na
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Molecular formula of Glauber's salt is :

(a) MgSO4·7H2O

(b) CuSO4·5H2O

(c) FeSO4·7H2O

(d) Na2SO4·10H2O

Concept Videos :-

#3 | NaOH (Caustic Soda)
#4 | Na2CO3 (Sodium Carbonate), Gypsum & POP

Concept Questions :-

Some Important Compounds of Na
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Among the following, which has minimum solubility in water?

(a) KOH

(b) CsOH

(c) LiOH

(d) RbOH

Concept Videos :-

#3 | NaOH (Caustic Soda)
#4 | Na2CO3 (Sodium Carbonate), Gypsum & POP

Concept Questions :-

Some Important Compounds of Na
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Caustic soda is:

(a) efflorescent

(b) deliquescent

(c) hygroscopic

(d) oxidant

Concept Videos :-

#3 | NaOH (Caustic Soda)
#4 | Na2CO3 (Sodium Carbonate), Gypsum & POP

Concept Questions :-

Some Important Compounds of Na
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Pearl ash and caustic potash are chemically:

(a) K2CO3 and KOH

(b) KOH and K2CO3

(c) Na2CO3 and KOH

(d) Na2CO3 and NaOH

Concept Videos :-

#3 | NaOH (Caustic Soda)
#4 | Na2CO3 (Sodium Carbonate), Gypsum & POP

Concept Questions :-

Some Important Compounds of Na
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Tin dissolves in boiling caustic soda solution because of the formation of soluble:

(a) Sn(OH)2

(b) Sn(OH)4

(c) Na2SnO3

(d) none of these

Concept Videos :-

#3 | NaOH (Caustic Soda)
#4 | Na2CO3 (Sodium Carbonate), Gypsum & POP

Concept Questions :-

Some Important Compounds of Na
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Which one is the highest melting point halide?

(a) NaCl

(b) NaBr

(c) NaF

(d) NaI

Concept Videos :-

#3 | NaOH (Caustic Soda)
#4 | Na2CO3 (Sodium Carbonate), Gypsum & POP

Concept Questions :-

Some Important Compounds of Na
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