MCQ
Which of the following statements is not correct ?
- A$Ti(NO_3)_4$ is a colourless compound
- B$[Cr(NH_3)_6)]Cl_3$ is a coloured compound
- ✓$K_3[VF_6]$ is a colourless compound
- D$[Cu(NCCH_3)_4]BF_4$ is a colourless compound
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Assertion $A:$ $5 f$ electrons can participate in bonding to a far greater extent than $4 f$ electrons
Reason $R:$ $5 f$ orbitals are not as buried as $4 f$ orbitals
In the light of the above statements, choose the correct answer from the options given below

| Catalyst | Process |
| $(i) \;\mathrm{Na}_{2} \mathrm{O}$ | $(a)$ The oxidation of ethyne to ethanal |
| $(ii) \;\mathrm{TiCl}_{4}+ \mathrm{Al(CH_3)}_{3}$ | $(b)$ Polymerisation of alkynes |
|
$(iii)\;\mathrm{PdCl_2} $ |
$(c)$ Oxidation of $SO_2$ in the manufacture of $H_2SO_4$ |
| $(iv)\;$Nickel complexes | $(d)$ Polymerisation of ethylene |
Which of the following is the correct option ?