MCQ
On adding excess of ammonium hydroxide to a copper chloride solution.
- ✓A deep blue solution is obtained
- BNo change is observed
- CBlue precipitate of copper hydroxide is obtained
- DBlack precipitate of copper oxide is obtained
✓
Answer
Correct option: A.
A deep blue solution is obtained
a
(a) On adding excess of ammonium hydroxide to a copper chloride solution a deep blue solution of ${[Cu{(N{H_3})_4}]^{2 + }}$ ion is formed.
(a) On adding excess of ammonium hydroxide to a copper chloride solution a deep blue solution of ${[Cu{(N{H_3})_4}]^{2 + }}$ ion is formed.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Acetaldehyde and Acetone can be distinguished by
The number of molecules with energy greater than the threshold energy for a reaction increases five fold by a rise of temperature from $27^{\circ}\, C$ to $42^{\circ}\, C .$ Its energy of activation in $J / mol$ is.............. (Take in $\ln 5=1.6094;\left.R =8.314\, J mol ^{-1} K ^{-1}\right)$
→Select the option with correct property -
Which one is used in the manufacture of mirror
Which of the following acids forms three series of salts?
The vitamin which is water soluble and antioxidant is
Correct order of basic strength is:
Rank the following in order of decreasing rate in an $E_2$ reaction
→Which reaction characteristics are changing by the addition of a catalyst to a reaction at constant temperature $ (i)$ Activation energy $(ii)$ Equilibrium constant $(iii)$ Reaction entropy $ (iv)$ Reaction enthalpy
→The standard potentials of $Ag^+/ Ag,\,\,Hg_2^{2+}/2Hg,\,\,Cu^{2+}/cu$ and $Mg^{2+}/Mg$ electrodes are $0.80,\,0.79, 0.34$ and $-2.37\,V,$ respectively. An aqueous solution which contains one mole per litre of the salts of each of the four metals is electrolyzed. With increasing voltage, the correct sequence of deposition of the metals at the cathode is
→