NTA JEE Main 8th April2023 Shift 1 - Chemistry

NTA JEE Main 8th April2023 Shift 1 - Chemistry - Question 31

Report

The correct order of electronegativity for given elements is

A

P > Br > C > At

B

Br > P > At > C

C

Br > C > At > P

D

C > P > At > Br

View Solution

NTA JEE Main 8th April2023 Shift 1 - Chemistry - Question 32

Report

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Butan-1-ol has higher boiling point than ethoxyethane.
Reason R: Extensive hydrogen bonding leads to stronger association of molecules.
In the light of the above statements, choose the correct answer from the options given below :

A

A is true but R is false

B

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

C

Both A and R are true but R is not the correct explanation of A

D

A is false but R is true

View Solution

NTA JEE Main 8th April2023 Shift 1 - Chemistry - Question 33

Report

$$2IO_3^- + xI^- + 12H^+ \rightarrow 6I_2 + 6H_2$$ What is the value of x?

A

2

B

12

C

10

D

6

View Solution Video Solution

NTA JEE Main 8th April2023 Shift 1 - Chemistry - Question 34

Report

Given below are two statements:
Statement I: Lithium and Magnesium do not form superoxide
Statement II: The ionic radius of Li$$^+$$ is larger than ionic radius of Mg$$^{2+}$$
In the light of the above statements, choose the most appropriate answer from the questions given below:

A

Statement I is incorrect but Statement II is correct

B

Statement I is correct but Statement II is incorrect

C

Both statement I and Statement II are incorrect

D

Both Statement I and Statement II are correct

View Solution

NTA JEE Main 8th April2023 Shift 1 - Chemistry - Question 35

Report

What is the purpose of adding gypsum to cement?

A

To facilitate the hydration of cement

B

To slow down the process of setting

C

To give a hard mass

D

To speed up the process of setting

View Solution

NTA JEE Main 8th April2023 Shift 1 - Chemistry - Question 36

Report

Match List I with List II
List-I (Species)                           List-2 (Maximum allowed concentration in ppm in drinking water)
A. F$$^-$$                                              I. < 50 ppm
B. SO$$_4^{2-}$$                                         II. < 5 ppm
C. NO$$_3^-$$                                          III. < 2 ppm
D. Zn                                              IV. < 500 ppm
Choose the correct answer from the options given below.

A

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

B

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

C

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

D

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

View Solution

NTA JEE Main 8th April2023 Shift 1 - Chemistry - Question 37

Report

The reaction occurs in which of the given galvanic cell?
$$\dfrac{1}{2}H_2(g) + AgCl(s) \rightleftharpoons H^+(aq) + Cl^-(aq) + Ag(s)$$

A

Pt |H$$_2$$(g)| HCl(sol$$^n$$) |AgCl(s)| Ag

B

Ag |AgCl(s)| KCl(sol$$^n$$) |AgNO$$_3$$ |Ag

C

Pt |H$$_2$$(g)| HCl(sol$$^n$$) |AgNO$$_3$$(sol$$^n$$) |Ag

D

Pt |H$$_2$$(g)| KCl(sol$$^n$$) |AgCl(s) |Ag

View Solution

NTA JEE Main 8th April2023 Shift 1 - Chemistry - Question 38

Report

The water gas on reacting with cobalt as a catalyst forms

A

Methanal

B

Methanoic acid

C

Ethanol

D

Methanol

View Solution

NTA JEE Main 8th April2023 Shift 1 - Chemistry - Question 39

Report

Which of the following represents the Freundlich adsorption isotherms?
(A)

(B)

(C)

(D)

Choose the correct answer from the options given below:

A

A, C, D only

B

A, B only

C

B, C, D only

D

A, B, D only

View Solution

NTA JEE Main 8th April2023 Shift 1 - Chemistry - Question 40

Report

Which of the following metals can be extracted through alkali leaching technique?

A

Sn

B

Pb

C

Au

D

Cu

View Solution

NTA JEE Main 8th April2023 Shift 1 - Chemistry - Question 41

Report

In chromyl chloride, the number of d-electrons present on chromium is same as in (Given at no. of Ti: 22, V: 23, Cr: 24, Mn: 25, Fe: 26)

A

V (IV)

B

Mn (VII)

C

Fe (III)

D

Ti (III)

View Solution

NTA JEE Main 8th April2023 Shift 1 - Chemistry - Question 42

Report

Which halogen is known to cause the reaction given below?

A

All halogens

B

Only Bromine

C

Only Iodine

D

Only Chlorine

View Solution

NTA JEE Main 8th April2023 Shift 1 - Chemistry - Question 43

Report

Which of the following complex is octahedral, diamagnetic and the most stable?

A

Na$$_3$$[CoCl$$_6$$]

B

[Ni(NH$$_3$$)$$_6$$] Cl$$_2$$

C

K$$_3$$[Co(CN)$$_6$$]

D

[Co(H$$_2$$O)$$_6$$] Cl$$_2$$

View Solution

NTA JEE Main 8th April2023 Shift 1 - Chemistry - Question 44

Report

The correct order of spin only magnetic moments for the following complex ions is

A

[Fe(CN)$$_6$$]$$^{3-}$$ < [CoF$$_6$$]$$^{3-}$$ < [MnBr$$_4$$]$$^{2-}$$ < [Mn(CN)$$_6$$]$$^{3-}$$

B

[CoF$$_6$$]$$^{3-}$$ < [MnBr$$_4$$]$$^{2-}$$ < [Fe(CN)$$_6$$]$$^{3-}$$ < [Mn(CN)$$_6$$]$$^{3-}$$

C

[Fe(CN)$$_6$$]$$^{3-}$$ < [Mn(CN)$$_6$$]$$^{3-}$$ < [CoF$$_6$$]$$^{3-}$$ < [MnBr$$_4$$]$$^{2-}$$

D

[MnBr$$_4$$]$$^{2-}$$ < [CoF$$_6$$]$$^{3-}$$ < [Fe(CN)$$_6$$]$$^{3-}$$ < [Mn(CN)$$_6$$]$$^{3-}$$

View Solution

NTA JEE Main 8th April2023 Shift 1 - Chemistry - Question 45

Report

Choose the halogen which is most reactive towards SN1 reaction in the given compounds (A, B, C & D)
A.

B.

C.

D.

A

$$A - Br_{(b)}; B - I_{(a)}; C - Br_{(a)}; D - Br_{(a)}$$

B

$$A - Br_{(b)}; B - I_{(b)}; C - Br_{(b)}; D - Br_{(b)}$$

C

$$A - Br_{(a)}; B - I_{(a)}; C - Br_{(b)}; D - Br_{(a)}$$

D

$$A - Br_{(a)}; B - I_{(a)}; C - Br_{(a)}; D - Br_{(a)}$$

View Solution

NTA JEE Main 8th April2023 Shift 1 - Chemistry - Question 46

Report

The major product formed in the following reaction is

CO$$_2$$H + CO$$_2$$Et compound treated with (i) LiBH$$_4$$/EtOH (ii) H$$_3$$O$$^+$$

A

B

C

D

View Solution

NTA JEE Main 8th April2023 Shift 1 - Chemistry - Question 47

Report

Match List I with List II:

A

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

B

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

C

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

D

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

View Solution

NTA JEE Main 8th April2023 Shift 1 - Chemistry - Question 48

Report

Match List I with List II:

is reacted with reagents in List I to form products in List II

Choose the correct answer from the options given below:

A

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

B

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

C

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

D

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

View Solution Video Solution

NTA JEE Main 8th April2023 Shift 1 - Chemistry - Question 49

Report

Match List I with List II
List I                             List II
A. Saccharin         I. High potency sweetener
B. Aspartame       II. First artificial sweetening agent
C. Alitame             III. Stable at cooking temperature
D. Sucralose         IV. Unstable at cooking temperature
Choose the correct answer from the options given below :

A

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

B

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

C

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

D

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

View Solution

NTA JEE Main 8th April2023 Shift 1 - Chemistry - Question 50

Report

Sulphur (S) containing amino acids from the following are:
(a) isoleucine
(b) cysteine
(c) lysine
(d) methionine
(e) glutamic acid

A

b, c, e

B

a, b, c

C

b, d

D

a, d

View Solution

NTA JEE Main 8th April2023 Shift 1 - Chemistry - Question 51

Report

0.5 g of an organic compound (X) with 60% carbon will produce ______ $$\times 10^{-1}$$ g of CO$$_2$$ on complete combustion.

Backspace
789
456
123
0.-
Clear All

Submit

View Solution

NTA JEE Main 8th April2023 Shift 1 - Chemistry - Question 52

Report

The number of following statement/s which is/are incorrect is ______
A) Line emission spectra are used to study the electronic structure
B) The emission spectra of atoms in the gas phase show a continuous spread of wavelength from red to violet.
C) An absorption spectrum is like the photographic negative of an emission spectrum
D) The element helium was discovered in the sun by spectroscopic method

Backspace
789
456
123
0.-
Clear All

Submit

View Solution

NTA JEE Main 8th April2023 Shift 1 - Chemistry - Question 53

Report

The number of following factors which affect the percent covalent character of the ionic bond is______
A) Polarising power of cation
B) Extent of distortion of anion
C) Polarisability of the anion
D) Polarising power of anion

Backspace
789
456
123
0.-
Clear All

Submit

View Solution

NTA JEE Main 8th April2023 Shift 1 - Chemistry - Question 54

Report

Three bulbs are filled with CH$$_4$$, CO$$_2$$ and Ne as shown in the picture. The bulbs are connected through pipes of zero volume. When the stopcocks are opened and the temperature is kept constant throughout, the pressure of the system is found to be ______ atm. (Nearest integer).

Backspace
789
456
123
0.-
Clear All

Submit

View Solution

NTA JEE Main 8th April2023 Shift 1 - Chemistry - Question 55

Report

When a 60 W electric heater is immersed in a gas for 100 s in a constant volume container with adiabatic walls, the temperature of the gas rises by 5°C. The heat capacity of the given gas is JK$$^{-1}$$ (Nearest integer)

Backspace
789
456
123
0.-
Clear All

Submit

View Solution

NTA JEE Main 8th April2023 Shift 1 - Chemistry - Question 56

Report

The titration curve of weak acid vs. strong base with phenolphthalein as indicator is shown below. The $$K_{phenolphthalein} = 4 × 10^{−10}$$
Given: $$log  2 = 0.3$$

The number of following statement/s which is/are correct about phenolphthalein is ______
A. It can be used as an indicator for the titration of weak acid with weak base.
B. It begins to change colour at pH = 8.4
C. It is a weak organic base
D. It is colourless in acidic medium

Backspace
789
456
123
0.-
Clear All

Submit

View Solution

NTA JEE Main 8th April2023 Shift 1 - Chemistry - Question 57

Report

Molar mass of the hydrocarbon (X) which on ozonolysis consumes one mole of O$$_3$$ per mole of (X) and gives one mole each of ethanal and propanone is ______ g mol$$^{-1}$$ (Molar mass of C: 12 g mol$$^{-1}$$, H: 1 g mol$$^{-1}$$)

Backspace
789
456
123
0.-
Clear All

Submit

View Solution

NTA JEE Main 8th April2023 Shift 1 - Chemistry - Question 58

Report

The vapour pressure vs. temperature curve for a solution solvent system is shown below.

The boiling point of the solvent is ______°C.

Backspace
789
456
123
0.-
Clear All

Submit

View Solution

NTA JEE Main 8th April2023 Shift 1 - Chemistry - Question 59

Report

The number of given statement/s which is/are correct is______
(A) The stronger the temperature dependence of the rate constant, the higher is the activation energy.
(B) If a reaction has zero activation energy, its rate is independent of temperature.
(C) The stronger the temperature dependence of the rate constant, the smaller is the activation energy.
(D) If there is no correlation between the temperature and the rate constant then it means that the reaction has negative activation energy.

Backspace
789
456
123
0.-
Clear All

Submit

View Solution

NTA JEE Main 8th April2023 Shift 1 - Chemistry - Question 60

Report

XeF$$_4$$ reacts with SbF$$_5$$ to form [XeF$$_m$$]$$^{n+}$$[SbF$$_y$$]$$^{z-}$$. $$m + n + y + z$$ = ?

Backspace
789
456
123
0.-
Clear All

Submit

View Solution