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

The correct van der Waals equation for 1 mole of a real gas is :

A
$$\mathrm{\left(p+\frac{a}{V^2}\right)(V-b)=R T}$$
B
$$\mathrm{\left(p+\frac{V^2}{a}\right)(V-b)=R T}$$
C
$$\mathrm{\left(p+\frac{a^2}{V^2}\right)\left(V^2-n b\right)=R T}$$
D
$$\mathrm{\left(p+\frac{a n^2}{V}\right)(V-n b)=n R T}$$
2
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

The correct option in which the density of argon (Atomic mass = 40) is highest:

A
STP
B
0$$^\circ$$C, 2 atm
C
0$$^\circ$$C, 4 atm
D
273$$^\circ$$C, 4 atm
3
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1
Change Language

Which of the following is correctly matched?

A
Basic oxides $$\Rightarrow \mathrm{In}_2 \mathrm{O}_3, \mathrm{~K}_2 \mathrm{O}, \mathrm{SnO}_2$$
B
Neutral oxides $$\Rightarrow \mathrm{CO}, \mathrm{NO}_2, \mathrm{~N}_2 \mathrm{O}$$
C
Acidic oxides $$\Rightarrow \mathrm{Mn}_2 \mathrm{O}_7, \mathrm{SO}_2, \mathrm{TeO}_3$$
D
Amphoteric oxides $$\Rightarrow \mathrm{BeO}, \mathrm{Ga}_2 \mathrm{O}_3, \mathrm{GeO}$$
4
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Which of the following is a positively charged sol?

A
Methylene blue sol
B
Congo red sol
C
Silver sol
D
Sb$$_2$$S$$_3$$ sol
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