1
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus

Which one is not correct mathematical equation for Dalton's Law of partial pressure? Here p = total pressure of gaseous mixture

where pi = partial pressure of ith gas

$${\chi _i}$$ = mole fraction of ith gas in gaseous mixture where $${\chi _i}$$ = mole fraction of ith gas in gaseous mixture

$$p_i^o$$ = pressure of ith gas in pure state

A
$$p = {p_1} + {p_2} + {p_3}$$
B
$$p = {n_1}{{RT} \over V} + {n_2}{{RT} \over V} + {n_3}{{RT} \over V}$$
C
$${p_i} = {\chi _i}p$$
D
$${p_i} = {\chi _i}p_i^o$$
2
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1

Given below are two statements:

Statement I: The acidic strength of monosubstituted nitrophenol is higher than phenol because of electron withdrawing nitro group.

Statement II : o-nitrophenol, m-nitrophenol and p-nitrophenol will have same acidic strength as they have one nitro group attached to the phenolic ring.

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

A
Both Statement I and Statement II are correct.
B
Both Statement I and Statement II are incorrect.
C
Statement I is correct but Statement II is incorrect.
D
Statement I is incorrect but Statement II is correct.
3
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1

At 298 K, the standard electrode potentials of Cu2+ / Cu, Zn2+ / Zn, Fe2+ / Fe and Ag+ / Ag are 0.34 V, $$-$$0.76 V, $$-$$0.44 V V and 0.80 V, respectively.

On the basis of standard electrode potential, predict which of the following reaction cannot occur?

A
CuSO4(aq) + Zn(s) $$\to$$ ZnSO4(aq) + Cu(s)
B
CuSO4(aq) + Fe(s) $$\to$$ FeSO4(aq) + Cu(s)
C
FeSO4(aq) + Zn(s) $$\to$$ ZnSO4(aq) + Fe(s)
D
2CuSO4(aq) + 2Ag(s) $$\to$$ 2Cu(s) + Ag2SO4(aq)
4
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus

Given below ae two statements

Statement I:

In the coagulation of a negative sol, the flocculating power of the three given ions is in the order Al3+ > Ba2+ > Na+

Statement II:

In the coagulation of a positive sol, the flocculating power of the three given salts is in the order NaCl > Na2SO4 > Na3PO4

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

A
Both Statement I and Statement II are correct.
B
Both Statement I and Statement II are incorrect.
C
Statement I is correct but Statement II is incorrect.
D
Statement I is incorrect but Statement II is correct.
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