1
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1
Change Language

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A) : Ionisation enthalpy increases along each series of the transition elements from left to right. However, small variations occur.

Reason (R) : There is corresponding increase in nuclear charge which accompanies the filling of electrons in the inner d-orbitals.

In the light of the above statements, choose the most appropriate answer from the options given below :

A
(A) is correct but (R) is not correct.
B
(A) is not correct but (R) is correct.
C
Both (A) and (R) are correct and (R) is the correct explanation of (A).
D
Both (A) and (R) are correct but (R) is not the correct explanation of (A).
2
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1
Change Language

For a weak acid HA, the percentage of dissociation is nearly 1% at equilibrium. If the concentration of acid is 0.1 mol L$$^{-1}$$, then the correct option for its K$$_a$$ at the same temperature is :

A
$$1\times10^{-4}$$
B
$$1\times10^{-6}$$
C
$$1\times10^{-5}$$
D
$$1\times10^{-3}$$
3
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1
Change Language

The density of 1 M solution of a compound 'X' is 1.25 g mL$$^{-1}$$. The correct option for the molality of solution is (Molar mass of compound X = 85 g):

A
0.705 m
B
1.208 m
C
1.165 m
D
0.858 m
4
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1
Change Language

Consider the given reaction:

$$\mathrm{CH}_3 \mathrm{COCH}_3 \stackrel{\text { dil } \mathrm{Ba}(\mathrm{OH})_2}{\longrightarrow} \text { ''X" }$$

The functional groups present in compound "$$\mathrm{X}$$" are:

A
ketone and double bond
B
double bond and aldehyde
C
alcohol and aldehyde
D
alcohol and ketone
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