NTA JEE Main 13th April 2023 Shift 2 - Chemistry Section A

NTA JEE Main 13th April 2023 Shift 2 - Chemistry Section A - Question 31

Report

Identify the correct order of standard enthalpy of formation of sodium halides.

A

NaI $$<$$ NaBr $$<$$ NaF $$<$$ NaCl

B

NaI $$<$$ NaBr $$<$$ NaCl $$<$$ NaF

C

NaF $$<$$ NaCl $$<$$ NaBr $$<$$ NaI

D

NaCl $$<$$ NaF $$<$$ NaBr $$<$$ NaI

View Solution

NTA JEE Main 13th April 2023 Shift 2 - Chemistry Section A - Question 32

Report

Match List-I with List-II.

	List-I		List-II
A	Weak intermolecular forces of attraction	I	Hexamethylenediamine + adipic acid
B	Hydrogen bonding	II	AlEt$$_3$$ + TiCl$$_4$$
C	Heavily branched polymer	III	2-chloro-1, 3-butadiene
D	High density polymer	IV	Phenol + formaldehyde

Choose the correct answer from the options given below

A

A-IV, B-II, C-III, D-I

B

A-IV, B-I, C-III, D-II

C

A-II, B-IV, C-I, D-III

D

A-III, B-I, C-IV, D-II

View Solution

NTA JEE Main 13th April 2023 Shift 2 - Chemistry Section A - Question 33

Report

Given below are two statements :
Statement I : SO$$_2$$ and H$$_2$$O both possess V-shaped structure
Statement II : The bond angle of SO$$_2$$ is less than that of H$$_2$$O.
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 incorrect

B

Both Statement I and Statement II are correct

C

Statement I is incorrect but Statement II is correct

D

Statement I is correct but Statement II is incorrect

View Solution

NTA JEE Main 13th April 2023 Shift 2 - Chemistry Section A - Question 34

Report

What happens when methane undergoes combustion in systems A and B respectively?

A

System A: Temperature rises; System B: Temperature remains same

B

System A: Temperature remains same; System B: Temperature rises

C

System A: Temperature falls; System B: Temperature remains same

D

System A: Temperature falls; System B: Temperature rises

View Solution

NTA JEE Main 13th April 2023 Shift 2 - Chemistry Section A - Question 35

Report

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : Isotopes of hydrogen have almost same chemical properties, but difference in their rates of reactions.
Reason R: Isotopes of hydrogen have different enthalpy of bond dissociation.
In the light of the above statements, choose the most appropriate answer from the options given below:

A

Both A and R are correct but R is NOT the correct explanation of A

B

Both A and R are correct and R is the correct explanation of A

C

A is not correct but R is correct

D

A is correct but R is not correct

View Solution

NTA JEE Main 13th April 2023 Shift 2 - Chemistry Section A - Question 36

Report

Better method for preparation of BeF$$_2$$, among the following is

A

BeO + C + F$$_2$$ $$\xrightarrow{\Delta}$$ BeF$$_2$$

B

NH$$_{4_{2}}$$BeF$$_4$$ $$\xrightarrow{\Delta}$$ BeF$$_2$$

C

Be + F$$_2$$ $$\xrightarrow{\Delta}$$ BeF$$_2$$

D

BeH$$_2$$ + F$$_2$$ $$\xrightarrow{\Delta}$$ BeF$$_2$$

View Solution

NTA JEE Main 13th April 2023 Shift 2 - Chemistry Section A - Question 37

Report

The major product for the following reaction is :

A

B

C

D

View Solution

NTA JEE Main 13th April 2023 Shift 2 - Chemistry Section A - Question 38

Report

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : Order of acidic nature of the following compounds is A > B > C.

Reason R: Fluoro is a stronger electron withdrawing group than Chloro group.
In the light of the above statements, choose the correct answer from the options given below :

A

A is false but R is true

B

Both A and R are correct and R is the correct explanation of A

C

A is true but R is false

D

Both A and R are correct but R is NOT the correct explanation of A

View Solution

NTA JEE Main 13th April 2023 Shift 2 - Chemistry Section A - Question 39

Report

Given below are two statements :
Statement I : Tropolone is an aromatic compound and has $$8\pi$$ electrons.
Statement II : $$\pi$$ electrons of $$> C = O$$ group in tropolone is involved in aromaticity. In the light of the above statements choose the correct answer from the options given below:

A

Statement I is true but Statement II is false

B

Statement I is false but Statement II is true

C

Both Statement I and Statement II are false

D

Both Statement I and Statement II are true

View Solution

NTA JEE Main 13th April 2023 Shift 2 - Chemistry Section A - Question 40

Report

Which of the following are the Green house gases?
A. Water vapour
B. Ozone
C. I$$_2$$
D. Molecular hydrogen
Choose the most appropriate answer from the options given below :

A

A and D only

B

B and C only

C

A and B only

D

C and D only

View Solution

NTA JEE Main 13th April 2023 Shift 2 - Chemistry Section A - Question 41

Report

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : The diameter of colloidal particles in solution should not be much smaller than wavelength of light to show Tyndall effect.
Reason R : The light scatters in all directions when the size of particles is large enough.
In the light of the above statements, choose the correct answer from the options given below :

A

Both A and R are correct but R is NOT the correct explanation of A

B

A is true but R is false

C

A is false but R is true

D

Both A and R are correct and R is the correct explanation of A

View Solution

NTA JEE Main 13th April 2023 Shift 2 - Chemistry Section A - Question 42

Report

Given below are two statements related to Ellingham diagram :
Statement I : Ellingham diagrams can be constructed for formation of oxides, sulphides and halides of metals.
Statement II : It consists of plots of $$\Delta H°$$ vs T for formation of oxides of elements.
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

View Solution Video Solution

NTA JEE Main 13th April 2023 Shift 2 - Chemistry Section A - Question 43

Report

The correct group of halide ions which can be oxidised by oxygen in acidic medium is

A

Br$$^-$$ and I$$^-$$ only

B

Br$$^-$$ only

C

I$$^-$$ only

D

Cl$$^-$$, Br$$^-$$ and I$$^-$$ only

View Solution

NTA JEE Main 13th April 2023 Shift 2 - Chemistry Section A - Question 44

Report

The covalency and oxidation state respectively of boron in BF$$_4^-$$, are

A

$$3$$ and $$5$$

B

$$3$$ and $$4$$

C

$$4$$ and $$4$$

D

$$4$$ and $$3$$

View Solution

NTA JEE Main 13th April 2023 Shift 2 - Chemistry Section A - Question 45

Report

Which of the following complexes will exhibit maximum attraction to an applied magnetic field?

A

$$[Ni(H_2O)_6]^{2+}$$

B

$$[Co(en)_3]^{3+}$$

C

$$[Zn(H_2O)_6]^{2+}$$

D

$$[Co(H_2O)_6]^{2+}$$

View Solution

NTA JEE Main 13th April 2023 Shift 2 - Chemistry Section A - Question 46

Report

The total number of stereoisomers for the complex $$[Cr(ox)_2ClBr]^{3-}$$ (where ox = oxalate) is

A

$$3$$

B

$$2$$

C

$$4$$

D

$$1$$

View Solution

NTA JEE Main 13th April 2023 Shift 2 - Chemistry Section A - Question 47

Report

Match List-I with List-II.
1-Bromopropane is reacted with reagents in List-I to give product in List-II

	List-I Reagent		List-II Product
A	KOH (alc)	I	Nitrile
B	KCN (alc)	II	Ester
C	AgNO$$_2$$	III	Alkene
D	H$$_3$$CCOOAg	IV	Nitroalkane

Choose the correct answer from the options given below

A

A-III, B-I, C-IV, D-II

B

A-I, B-II, C-III, D-IV

C

A-I, B-III, C-IV, D-II

D

A-IV, B-III, C-II, D-I

View Solution

NTA JEE Main 13th April 2023 Shift 2 - Chemistry Section A - Question 48

Report

Compound A from the following reaction sequence is :

A

Benzoic Acid

B

Aniline

C

Salicylic Acid

D

Phenol

View Solution

NTA JEE Main 13th April 2023 Shift 2 - Chemistry Section A - Question 49

Report

In the wet tests for detection of various cations by precipitation, Ba$$^{2+}$$ cations are detected by obtaining precipitate of

A

Ba(ox) : Barium oxalate

B

BaCO$$_3$$

C

Ba(OAc)$$_2$$

D

BaSO$$_4$$

View Solution

NTA JEE Main 13th April 2023 Shift 2 - Chemistry Section A - Question 50

Report

The naturally occurring amino acid that contains only one basic functional group in its chemical structure is

A

asparagine

B

histidine

C

arginine

D

lysine

View Solution