Download App

STD 12 - 5. Co-ordination chemistry — JEE STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceJEESTD 12 - 5. Co-ordination chemistry4 Marks
MCQ
Transition element makes complex compound due to
  • ✓
    Presence of empty $d-$ orbital
  • B
    large size
  • C
    Variable valency
  • D
    presence of $2e^-$ in outer shell
✓

Answer

Correct option: A.
Presence of empty $d-$ orbital
a
transition-metal ions form coordination complexes because they have empty valenceshell orbitals that can accept pairs of electrons from a Lewis base.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

JEE STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Bonds present in $CuS{O_4}.5{H_2}O$ is
→
Concentrated hydrochloric acid when kept in open air sometimes produces a cloud of white fumes. The explanation for it is that
→

Image
$\quad$$\quad$$\quad$Wavelength $\lambda$ (nanometers)
Which of the following statements are correct, if the threshold frequency of caesium is $5.16 \times 10^{14} \mathrm{~Hz}$ ?
A. When Cs is placed inside a vacuum chamber with an ammeter connected to it and yellow light is focused on Cs the ammeter shows the presence of current.
B. When the brightness of the yellow light is dimmed, the value of the current in the ammeter is reduced.
C. When a red light is used instead to the yellow light, the current produced is higher with respect to the yellow light.
D. When a blue light is used, the ammeter shows the formation of current.
E. When a white light is used, the ammeter shows formation of current.
Choose the correct answer from the options given below :
→
The correct order of acid strength is
→
Order of the bond strength of $C-H$ bonds involving $sp, sp^2$ and $sp^3$ hybridized carbon atoms is
→
$20\,mL$ of calcium hydroxide was consumed when it was reacted with $10\,mL$ of unknown solution of $H _2 SO _4$. Also $20 mL$ standard solution of $0.5\,M$ $HCl$ containing $2$ drops of phenolphthalein was titrated with calcium hydroxide the mixture showed pink colour when burette displayed the value of $35.5\,mL$ whereas the burette showed $25.5\,mL$ initially. The concentration of $H _2 SO _4$ is $..........M$ (Nearest integer)
→
The emperical formula of compound is $C{H_2}O$. If its molecular weight is $180$. The molecular formula of the compound is
→
Which of the following does not give alcohol on reduction
→
Which of the following compounds are optically active
→
“The position and velocity of a small particle like electron cannot be simultaneously determined.” This statement is
→