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1
TG EAPCET 2024 (Online) 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following when subjected to thermal decomposition will liberate dinitrogen ?

(i) Sodium nitrate

(ii) Ammonium dichromate

(iii) Barium azide

A
(i), (ii) only
B
(ii), (iii) only
C
(i), (iii) only
D
(i), (ii), (iii)
2
TG EAPCET 2024 (Online) 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
Identify the set which is not correctly matched in the following.
A
$\mathrm{PH}_3$, colourless gas, rotten fish smell.
B
$\mathrm{Cl}_2$, greenish yellow gas, pungent smell.
C
Ne , fluoresent green gas, rotten egg smell.
D
$\mathrm{SO}_2$, colourless gas, pungent smell.
3
TS EAMCET 2023 (Online) 12th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The dioxides and monoxides of elements $X$ and $Y$ are amphoteric in nature. $X$ and $Y$ are respectively

A
$\mathrm{C}, \mathrm{Si}$
B
$\mathrm{Si}, \mathrm{Ge}$
C
$\mathrm{Sn}, \mathrm{Pb}$
D
$\mathrm{Ge}, \mathrm{Pb}$
4
TS EAMCET 2023 (Online) 12th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Assertion (A) : In group 15 elements nitrogen does not form pentahalides.

Reason (R) : Nitrogen can exhibit +5 oxidation state.

The correct option among the following is

A
(A) and (R) are true and (R) is the correct explanation of (A).
B
(A) and (R) are true but (R) is not correct explanation of (A).
C
(A) is true but (R) is false.
D
(A) is false but (R) is true.
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