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

Molar conductance of an electrolyte increase with dilution according to the equation:

$$\Lambda_{\mathrm{m}}=\Lambda_{\mathrm{m}}^{\circ}-\mathrm{A} \sqrt{\mathrm{c}}$$

Which of the following statements are true?

(A) This equation applies to both strong and weak electrolytes.

(B) Value of the constant $$\mathrm{A}$$ depends upon the nature of the solvent.

(C) Value of constant $$\mathrm{A}$$ is same for both $$\mathrm{BaCl}_2$$ and $$\mathrm{MgSO}_4$$

(D) Value of constant $$\mathrm{A}$$ is same for both $$\mathrm{BaCl}_2$$ and $$\mathrm{Mg}(\mathrm{OH})_2$$

Choose the most appropriate answer from the options given below:

A
(A) and (B) only
B
(A), (B) and (C) only
C
(B) and (C) only
D
(B) and (D) only
2
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Cheilosis occurs due to deficiency of _________.

A
thiamine
B
nicotinamide
C
pyridoxamine
D
riboflavin
3
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1
Change Language

The correct value of cell potential in volt for the reaction that occurs when the following two half cells are connected, is

$$\begin{aligned} & \mathrm{Fe}_{(\mathrm{aq})}^{2+}+2 \mathrm{e}^{-} \rightarrow \mathrm{Fe}(\mathrm{s}), \mathrm{E}^{\circ}=-0.44 \mathrm{~V} \\ & \mathrm{Cr}_2 \mathrm{O}_7^{2-} \text { (aq) }+14 \mathrm{H}^{+}+6 e^{-} \rightarrow 2 \mathrm{Cr}^{3+}+7 \mathrm{H}_2 \mathrm{O} \\ & \mathrm{E}^{\circ}=+1.33 \mathrm{~V} \end{aligned}$$

A
$$+1.77 \mathrm{~V}$$
B
$$+2.65 \mathrm{~V}$$
C
$$+0.01 \mathrm{~V}$$
D
$$+0.89 \mathrm{~V}$$
4
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1
Change Language

NEET 2023 Manipur Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 1 English

Identify 'X' in above reactions

A
B$$_2$$H$$_6$$
B
LiAlH$$_4$$
C
NaBH$$_4$$
D
H$$_2$$/Pd
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