1
KCET 2026
MCQ (Single Correct Answer)
+1
-0
Which one of the following graph is not applicable for a 1st order reaction ($R \rightarrow P$)?
A
B
C
D
2
KCET 2026
MCQ (Single Correct Answer)
+1
-0
The calculated spin only magnetic moment of $\text{Cr}^{2+}$ ion is
A
$3.87$ BM
B
$4.90$ BM
C
$5.92$ BM
D
$2.84$ BM
3
KCET 2026
MCQ (Single Correct Answer)
+1
-0
The highest oxidation state of manganese in fluoride is $+4$ ($\text{MnF}_4$), but the highest oxidation state in oxides is $+7$ ($\text{Mn}_2\text{O}_7$), because
A
Fluorine is more electronegative than oxygen
B
Fluorine possesses d-orbitals
C
Fluorine stabilises lower oxidation state
D
In covalent compounds, fluorine can form single bond only, while oxygen forms double bond
4
KCET 2026
MCQ (Single Correct Answer)
+1
-0
Which of the following will not act as an oxidising agent?
A
$\text{CrO}_3$
B
$\text{MoO}_3$
C
$\text{CrO}_4^{2-}$
D
$\text{Cr}_2\text{O}_7^{2-}$