Quanta Test - Chemistry MCQ

Solution A contains 7g/L of MgCl2 and Solution B contains 7g/L of NaCl. At room temp, Osmotic pressure of

When a substance is dissolved in a solvent the vapour pressure of the solvent is decreased. This results in

At a given temperature, total vapour pressure in Torr of a mixture of volatile components A and B is given by p = 120 – 75XB Hence, vapour pressure of pure A and B respectively (in Torr) are:

Kohlrausch's law states that at:

Given   The potential for the cell  (0.01 M)|Fe is:

If the ΔG of a cell reaction AgCl^– + e^– → Ag + Cl^– is –21.20 KJ; the standard e.m.f., of cell is:

Most stable free radical is:

Product of this reaction by single SE reaction:

Relative stabilities of the following carbocation will be in the order:

There is formation of precipitate almost instantly when a alcoholic AgNO₃ reacts with

The correct stability order for the following species is:

Dehydrobromination (—HBr) of the following in increasing order is:

The correct stability order of the following resonance structure is:

At room temperature, HCl is a gas while HF is a liquid because:

The ascending order of stability of the Carboanion is:

Leaving tendency of the following in increasing order is:

(I) Cl^–
(II) CH₃COO^–
(III) OH^–
(V) RO^–

(VI) NH₃^–

E₁, E₂ and E₃ are the emf values of the three galvanic cells respectively.

For the electrochemical cell,

M|M⁺|| X^–| X, E° (M⁺/M) = 0.44 V E°(X/X^–) = 0.33 V. From this data one can deduce that:

Based on the following information, 

Which of the following chemical species is the strongest reducing agent?

The standard reduction potentials at 298 K for the following half reactions are given against each

Which is the strongest reducing agent

Most radioactive of the isotopes of an element is the one with largest value of

T_1/2 of C¹⁴ isotope is 5770 years. Time after which 72% of isotope left is:

2 g of a radioactive sample having half life of 15 days was synthesized on 1st Jan 2018. The amount of the sample left behind on 1st March, 2018 (including both the days)

In the sequence of following nuclear reactions 

The value of n will be

For the fission reaction

The value of x and y will be

58.5 g of NaCl and 180g of glucose were separately dissolved in 1L of water. Identify the correct statements regarding the elevation in boiling point of solution.

Elevation in boiling point of solution of 13.44g of CuCl₂ in 1 Kg of water will be (Mwt = 134.4, K_b = 0.52Kmolal^–1, assume it is a strong electrolyte)