Analytical Chemistry Dalal Simplified ICSE Class-10

Use of Ammonia and Sodium Hydroxide

Analytical Chemistry Dalal Simplified ICSE Chemistry Class-10 Solutions. Dalal Simplified ICSE Chemistry Analytical Chemistry by Dr Viraf and J Dalal for Class 10. Step by step Solutions of Analytical Chemistry by Dr Viraf and J Dalal of Concept of Simplified Dalal ICSE Chemistry.

Analytical Chemistry Dalal Simplified ICSE Class-10

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 Analytical Chemistry Dalal Simplified ICSE

Question 1.

Salts of…………… (normal / transition) elements are generally coloured. From the ions K,+, Cr3+, Fe2+, Ca2+ So32-, Mno41-, No31- the ions generally coloured are
Answer:
Normal; Cr3+, Fe2+, Mno41

Question 2.

The hydroxide which is soluble in excess of NaOH is [Zn(OH)2 / Fe(OH)3 / Fe(OH)2]
Answer:
Zn(OH)2

Question 3.

The salt which will not react with NH4OH solution [ZnCl2/CuCl2/NH4 Cl/FeCl2]
Answer:
NH4Cl

Question 4.

The substance/s which react/s with hot cone. NaOH soln. and undergoes a neutralization reaction…………….. [Al203/Al/Al(OH)3]
Answer:
Al203

Question 5.

To distinguish soluble salts of zinc and lead, ……………….[NaOH/NH4OH] can be used.
Answer:
NaOH

Question 6.

Oxides and hydroxide of certain metals i.e………… (iron/ zinc/copper/aluminium/magnesium/Iead] are amphoteric and react with……………[acids/alkali/acids and alkalis].

Answer:
zinc, aluminium and lead; acids and alkalis
Complete the following equations:

  1. MgCl2 + NH4OH→ ……… +………..
  2. Zn + NaOH → ……… +…….
  3. ZnO + NaOH → ……… +…………
  4. Al(OH)3 + KOH → …….. +………..
  5. Zn(OH)2 + NaOH (excess) → ………. + ………..
  6. Pb(No3)2 + NH4OH → …… + ………..
  7. Al2 O3 + KOH → ……. +…………
  8. FeCl3 + NaOH → ………+ ……….

Answer:
Ans 6 Additional Question Analytical Chemistry Dalal Simplified ICSE

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