JEE Main entrance exam Question Bank Solutions for Chemistry (JEE Main)

In the given reaction,

The number of n electrons present in the product 'P' is ______.

In an ionic solid r₍₊₎ = 1.6 Å and r₍₋₎ = 1.864 Å. Use the radius ratio rule to the edge length of the cubic unit cell is ______ Å.

An element A (Atomic weight = 100) having bcc structure has a unit cell edge length 400 pm. The number of atoms in 10 g of A is ______ × 10²² unit cells.

A reaction of ethyl amine and acetic anhydride leads to the formation of ______.

The ratio of number of atoms present in a simple cubic, body-centred cubic and face-centred cubic structure are, respectively ______.

Which of the following oxoacids of sulphur contains "S" in two different oxidation states?

The solubility of AgCl will be maximum in which of the following?

For the following Assertion and Reason, the correct option is:

Assertion (A): When Cu (II) and sulphide ions are mixed they react together extremely quickly to give a solid.

Reason (R): The equilibrium constant of \[\ce{Cu^{2+}(aq) + S^{2-}(aq) <=> CuS(s)}\] is high because the solubility product is low.

An organic compound X showing the following solubility profile is:

If solubility product of Zr₃(PO₄)₄ is denoted by K_sp and its molar solubility is denoted by S, then which of the following relation between S and K_sp is correct?

Identify product A in the following reaction.

\[\begin{array}{cc}
\ce{COOH}\phantom{.......}\\
/\phantom{...............}\\
\ce{CH2 ->[\Delta] CH3COOH + A}\\
\backslash\phantom{................}\\
\ce{COOH}\phantom{........}
\end{array}\]

Water soluble salt among AgNO₃, AgF and AgClO₄ are:

Which of the following salts will turn water coloured when fumes evolved on treatment with conc. H₂SO₄ are passed in water?

Give the order of decarboxylation of the following acid:

CH3COOH	CH2 = CH–CH2 – COOH
I	II
CH2(COOH)2
III	IV

The energy released in joule and MeV in the following nuclear reaction,

\[\ce{^2_1{H} + ^2_1{H} -> ^3_2{He} + ^1_0{n}}\]

(Assume that the masses of \[\ce{^2_1{H}}\], \[\ce{^3_2{He}}\] and neutron (n) respectively are 2.0141, 3.0160 and 1.0087 in amu) is ______ × 10⁻¹³ J.

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]