JEE Main entrance exam Question Bank Solutions

Which one of the following arrangements represents the correct order of solubilities of sparingly soluble salts Hg₂Cl₂, Cr₂(SO₄)₃, BaSO₄ and CrCl₃ respectively?

Element 'B' forms ccp structures and A occupies half of the octahedral voids, while oxygen atoms occupy all the tetrahedral voids. The structure of bimetallic oxide is ______.

Ionic radii of cation A⁺ and anion B^- are 102 and 181 pm respectively. These ions are allowed to crystallize into an ionic solid. This crystal has cubic close packing for B^-. A⁺ is present in all octahedral voids. The edge length of the unit cell of the crystal AB is ______ pm. (Nearest integer)

The empirical formula for a compound with a cubic close packed arrangement of anions and with cations occupying all the octahedral sites in A_xB. The value of x is ______. (Integer answer)

The density of a pure substance 'X' whose atoms pack in cubic close pack arrangement is 1 g/cc. If all tetrahedral voids are occupied by 'Y' atoms. The value of '3a' is ______ g/cc, if the density of resulting solid is 'a' g/cc.

[Given: Atomic mass (X) = 30 g/mol, (Y) = 20 g/mol]

The correct order of bond dissociation enthalpy of halogens is ______.

When chlorine is passed through the molten tin, the product obtained is ______.

NH₃ and BF₃ combine readily because of the formation of ______.

The coordination number of an atom in a body-centered cubic structure is ______.

[Assume that the lattice is made up of atoms]

An element has body centered cubic structure with a cell edge of 3.0 A. The density of the metal is 2 amu/ų. Atoms present in 243 × 10²⁴ amu of the element are ______ × 10²⁴.

Which among the following factors is the most important in making fluorine, the strongest oxidizing halogen?

The interhalogen compound fonned from the reaction of bromine with excess of fluorine is a ______.

A unit cell of sodium chloride has four formula units. The edge length of the unit cell is 0.564 nm. The density of sodium chloride is ______ g/cm³.

The set in which compounds have different nature is ______.

Match List - I with List - II:

Choose the most appropriate answer from the options given below:

Which one of the following reactions of xenon compounds is not feasible?

Given below are two statements:

Statements I: Frenkel defects are vacancy as well as interstitial defects.

Statements II: Frenkel defect leads of colour in ionic solids due to the presence of F-centers.

Choose the most appropriate answer for the statements from the options given below:

The incorrect statement about the imperfections in solids is ______.

Which type of ‘defect’ has the presence of cations in the interstitial sites?

Match List - I with List - II:

Choose the most appropriate answer from the options given below: