1
IAT (IISER) 2024
MCQ (Single Correct Answer)
+4
-1
According to the VSEPR theory, what are the most stable shapes of $X_4 F_4$ and $\mathrm{SF}_4$, respectively?
A
See-saw and square planar
B
Both see-saw
C
Square planar and see-saw
D
Both square planar
2
IAT (IISER) 2024
MCQ (Single Correct Answer)
+4
-1

The following complex ions absorb in the ultraviolet-visible region of light. Which one of these shows violet colour?

$$ \left[\mathrm{CoCl}\left(\mathrm{NH}_3\right)_5\right]^{2+},\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)\left(\mathrm{NH}_3\right)_5\right]^{3+},\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}, \text { and }\left[\mathrm{Co}(\mathrm{CN})_6\right]^{3-} $$

A
$\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)\left(\mathrm{NH}_3\right)_5\right]^{3+}$
B
$\left[\mathrm{CoCl}\left(\mathrm{NH}_3\right)_5\right]^{2+}$
C
$\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}$
D
$\left[\mathrm{Co}(\mathrm{CN})_6\right]^{3-}$
3
IAT (IISER) 2024
MCQ (Single Correct Answer)
+4
-1

$$ \text { What is the relationship between the structures depicted below? } $$

IAT (IISER) 2024 Chemistry - Isomerism Question 1 English
A
Conformational isomers
B
Structural isomers
C
Enantiomers
D
Positional isomers
4
IAT (IISER) 2024
MCQ (Single Correct Answer)
+4
-1
$$ \text { What is the correct order of acidity for the following compounds? } $$ IAT (IISER) 2024 Chemistry - General Organic Chemistry Question 1 English
A
$N>P>Q>M$
B
$\mathrm{P}>\mathrm{Q}>\mathrm{N}>\mathrm{M}$
C
$\mathrm{N}>\mathrm{P}>\mathrm{M}>\mathrm{Q}$
D
$\mathrm{P}>\mathrm{N}>\mathrm{Q}>\mathrm{M}$
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