NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry: Questions 1163 - 1167 of 1258

Access detailed explanations (illustrated with images and videos) to 1258 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. Subscription can be renewed yearly absolutely FREE! View Sample Explanation or View Features.

Rs. 500.00 or

How to register?

Question number: 1163

» Classification of Elements & Periodicity » Present Form of the Periodic Table

Edit
MCQ▾

Question

A compound AB whose electronegativity difference is 1.9, Atomic radius of A and B are and . The distance between A & B means

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1164

» Atomic Structure » Bohr Model of Hydrogen Atom

Edit
MCQ▾

Question

The energy of an electron in the second and third Bohr orbits of the hydrogen atom is ergs and erg respectively. Calculate the wavelength of the emitted radiation when the electron drops from third to second orbit -

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1165

» Classification of Elements & Periodicity » Ionization Enthalpy

Edit
MCQ▾

Question

Calculate the energy needed to convert three moles of sodium atoms in the gaseous state to sodium ions. The ionization energy of sodium is

Choices

Choice (4) Response

a.

b.

c.

d.

Question does not provide sufficient data or is vague

Question number: 1166

» Atomic Structure » Dual Nature of Matter

Edit
MCQ▾

Question

Calculate the number of photons emitted in 10 hours by a sodium lamp.

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1167

» Atomic Structure » Bohr Model of Hydrogen Atom

Edit
MCQ▾

Question

The ionization energy of atom is . The ionization energy of ion will be –

Choices

Choice (4) Response

a.

b.

c.

d.