1
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language

Identify the incorrect statement from the following.

A
All the five 5d orbitals are different in size when compared to the respective 4d orbitals.
B
All the five 4d orbitals have shapes similar to the respective 3d orbitals.
C
In an atom, all the five 3d orbitals are equal in energy in free state.
D
The shapes of dxy, dyz and dzx orbitals are similar to each other; and dx2 $$-$$ y2 and dz2 are similar to each other.
2
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language

The Kjeldahl's method for the estimation of nitrogen can be used to estimate the amount of nitrogen in which one of the following compounds?

A
NEET 2022 Phase 1 Chemistry - Some Basic Concepts of Organic Chemistry Question 22 English Option 1
B
NEET 2022 Phase 1 Chemistry - Some Basic Concepts of Organic Chemistry Question 22 English Option 2
C
NEET 2022 Phase 1 Chemistry - Some Basic Concepts of Organic Chemistry Question 22 English Option 3
D
NEET 2022 Phase 1 Chemistry - Some Basic Concepts of Organic Chemistry Question 22 English Option 4
3
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language

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.
4
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language

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)
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