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1
KCET 2023
MCQ (Single Correct Answer)
+1
-0

Which of the following compound does not give dinitrogen on heating?

A
$$\mathrm{Ba}\left(\mathrm{N}_3\right)_2$$
B
$$\mathrm{NH}_4 \mathrm{NO}_2$$
C
$$\mathrm{NH}_4 \mathrm{NO}_3$$
D
$$\left(\mathrm{NH}_4\right)_2 \mathrm{Cr}_2 \mathrm{O}_7$$
2
KCET 2023
MCQ (Single Correct Answer)
+1
-0

The correct decreasing order of basicity of hydrides of group- 15 elements is

A
$$\mathrm{SbH}_3>\mathrm{AsH}_3>\mathrm{PH}_3>\mathrm{NH}_3$$
B
$$\mathrm{PH}_3>\mathrm{AsH}_3>\mathrm{SbH}_3>\mathrm{NH}_3$$
C
$$\mathrm{AsH}_3>\mathrm{SbH}_3>\mathrm{NH}_3>\mathrm{PH}_3$$
D
$$\mathrm{NH}_3>\mathrm{PH}_3>\mathrm{AsH}_3>\mathrm{SbH}_3$$
3
KCET 2023
MCQ (Single Correct Answer)
+1
-0

Which one of the following oxoacids of phosphorus can reduce $$\mathrm{AgNO}_3$$ to metallic silver?

A
$$\mathrm{H}_3 \mathrm{PO}_2$$
B
$$\mathrm{H}_4 \mathrm{P}_2 \mathrm{O}_7$$
C
$$\mathrm{H}_4 \mathrm{P}_2 \mathrm{O}_6$$
D
$$\mathrm{H}_3 \mathrm{PO}_4$$
4
KCET 2022
MCQ (Single Correct Answer)
+1
-0

Which of the following hydrides is electron deficient?

A
$$\mathrm{CaH}_2$$
B
$$\mathrm{CH}_4$$
C
$$\mathrm{B}_2 \mathrm{H}_6$$
D
$$\mathrm{NaH}$$
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