JEE Main 2023 in 3 Days: Check JEE Main Chemistry Important Questions

JEE Main Chemistry Important Questions: The National Testing Agency (NTA) authorities are all set to conduct JEE main 2023 exam on Jan 24, 25, 28 (2nd shift only), 29, 30, 31, and Feb 1, 2023. The JEE main 2023 application form was released on Dec 15, 2023. The application form submission window was open till Jan 12, 2023. Furthermore, the JEE main city intimation slip 2023 was released on Jan 18, 2023. However, the authorities are yet to release the JEE main admit card 2023.

Also Read: JEE Main 2023 in 4 Days: Check JEE Main Physics Important Questions

Aspirants must revise their notes and JEE main 2023 important topics thoroughly, as only three days remain before the commencement of the exam. Candidates must solve questions from JEE main 2023 question bank to get familiarized with the main exam questions. Additionally, candidates can check out the below-mentioned JEE main chemistry important questions.

JEE Main Chemistry Important Questions

Following are some JEE Main chemistry important questions to prepare for the exam:

Question 1) If the kinetic energy of an electron is increased four times, the wavelength of the de-Broglie wave associated with it would become.

(a) Two times

(b) Half

(c) One fourth

(d) Four times

Ans: (b) Half

Question 2) According to Bohr’s theory, the angular momentum of an electron in 5th order orbit is

(a) 25 h/π

(b) 1.0 h/π

(c) 10 h/π

(d) 2.5 h/π

Ans: (d) 2.5 h/π

Question 3) The first ionisation potential of Na is 5.1 eV. The value of electron gain enthalpy of Na+will be?

(a) – 2.55 eV

(b) – 5.1 eV

(c) – 10.2 eV

(d) + 2.55 eV

Ans: (b) – 5.1 eV

Question 4) Beryllium and aluminium exhibit many properties which are similar. But the two elements differ in

(a) exhibiting maximum covalency in compound

(b) exhibiting amphoteric nature in their oxides

(c) forming covalent halides

(d) forming polymeric hydrides

Ans: (a) exhibiting maximum covalency in compound

Question 5) Which of the following will have meso-isomer also?

(a) 2- chlorobutane

(b) 2- hydroxypropanoic acid

(c) 2,3- dichloropentane

(d) 2-3- dichlorobutane

Ans: (d) 2-3- dichlorobutane