JEE Main entrance exam Question Bank Solutions

Arrange the following in increasing order of their covalent character.

(A) CaF₂

(B) CaCl₂

(C) CaBr₂

(D) CaI₂

Choose the correct answer from the options given below.

Lattice energy of an ionic compound depends upon ______.

A compound 'X' is acidic and it is soluble in NaOH solution, but insoluble in NaHC0 3 solution. Compound 'X' also gives violet colour with neutral FeCI3 solution. The compound 'X' is:

The interaction energy of London forces between two particles is proportional to r^x, where r is the distance between the particles. The value of x is ______.

Match List - I with List - II.

	List I		List II
(A)		(I)	Br2 in CS2
(B)		(II)	Na2Cr2O7/H2SO4
(C)		(III)	Zn
(D)		(IV)	CHCl3/NaOH

Choose the correct answer from the options given below:

The predominant intermolecular forces present in ethyl acetate, a liquid, are ______.

Five moles of an ideal gas at 1 bar and 298 K is expanded into the vacuum to double the volume. The work done is ______.

An ideal gas expands in volume from 1 × 10⁻³ to 1 × 10⁻² m³ at 300 K against a constant pressure of 1 × 10⁵ Nm⁻². The work done is ______.

The commercial name for calcium oxide is ______.

In curing cement plasters, water is sprinkled from time to time. This helps in ______.

Which of the following on thermal decomposition yields a basic as well as acidic oxide?

The substance not likely to contain CaCO₃ is ______.

Fructose is an example of ______.

Which of the following is an example of polyester?

Which of the following polymers is synthesized using a free radical polymerisation technique?

Nylon threads are made of ______.

How many of the following drugs is/are example(s) of broad spectrum antibiotic?

The structure shown below is of which well-known drug molecule-

Statement I : Penicillin is a bacteriostatic type antibiotic.

Statement II : The general structure of Penicillin is:

Choose the correct option:

Aminoglycosides are usually used as ______.