AIIMS · Chemistry
d and f Block Elements
50 practice questions for AIIMS — 33 easy · 17 medium · 0 hard. Every question is graded instantly with a step-by-step solution when you miss it.
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MCQ
$\mathrm{MnO}$ is
MCQ
Which of the following can react with $\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7$ ?
MCQ
Which of the following transition elements have melting point below $500^{\circ} \mathrm{C}$ ?
MCQ
Assertion : $\mathrm{Yb}^{2+}$ is more stable as compare to $\mathrm{Gd}^{2+}$. Reason : The electronic configuration of Gd is [ $\mathrm{Xe}] 4 f^7 5 d^2 6 s^2$.
MCQ
The basic character of the transition metal monoxide follows the order
MCQ
Least number of oxidation states is shown by
MCQ
Which of the following exhibits minimum number of oxidation states?
MCQ
In acidic medium, which of the following becomes colourless?
MCQ
In which of the following elements number of $d$-electrons is zero in $6 d$-orbital?
MCQ
Which is least stable in aqueous medium?
MCQ
$\mathrm{KMnO}_4$ on reaction with $\mathrm{KOH}$ does not give
MCQ
The colourless species is