1
MHT CET 2021 20th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which among the following aqueous salt solution is used in conductivity cell to determine cell constant?

A
AgNO$$_3$$
B
ZnSO$$_4$$
C
KCl
D
CuSO$$_4$$
2
MHT CET 2021 20th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

Calculate heat of formation of $$\mathrm{HCl}$$ gas from following reaction.

$$\mathrm{H}_{2(\mathrm{~g})}+\mathrm{Cl}_{2(\mathrm{~g})} \rightarrow 2 \mathrm{HCl}_{(\mathrm{g})} ; \Delta \mathrm{H}=-194 \mathrm{~kJ}$$

A
$$-143 \mathrm{~kJ} \mathrm{~mol}^{-1}$$
B
$$-286 \mathrm{~kJ} \mathrm{~mol}^{-1}$$
C
$$-92 \mathrm{~kJ} \mathrm{~mol}^{-1}$$
D
$$-97 \mathrm{~kJ} \mathrm{~mol}^{-1}$$
3
MHT CET 2021 20th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is the value of frequency of radiation when transition occurs between two stationary states that differ in energy by $$\Delta \mathrm{E}$$ ?

A
$$v=\frac{2 \pi}{h}$$
B
$$v=\frac{h}{\Delta E}$$
C
$$v=\frac{\Delta E}{h}$$
D
$$v=\frac{h}{2 \pi}$$
4
MHT CET 2021 20th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is molar concentration of weak monobasic acid if dissociation constant is 5 $$\times$$ 10$$^{-8}$$ and undergoes 0.5% dissociation?

A
0.03 M
B
0.002 M
C
0.001 M
D
0.005 M
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
CBSE
Class 12