Chemistry Test ...

What is the value of electron gain enthalpy of Na⁺ if IE₁ of Na = 5.1eV ?

Among the elements Ca, Mg, P and Cl, the order of increasing atomic radii is

Which one of the following arrangements represents the correct order of electron gain enthalpy (with negative sign) of the given atomic species

With which of the following electronic configuration an atom has the lowest ionisation enthalpy?

The ions O²⁻,F⁻,Na⁺, Mg²⁺ and Al³⁺ are isoelectronic. Their ionic radii show

Which of the following are not state functions?

(I) q + w

(II) q

(III) w

(IV) H - Ts

The enthalpy and entropy change for the reaction:

Br_2(l) + Cl_2(g) → 2BrCl_(g)

are 30 kJmol⁻¹ and 105 JK⁻¹mol⁻¹ respectively. The temperature at which the reaction will be in equilibrium is

Stainless steel does not rust because

In electrolytic purification, which of the following is made of impure metal?

The resistance of 1N solution of acetic acid is 250 ohm, when measured in a cell having a cell constant of 1.15 cm⁻¹. The equivalent conduction (in ohm⁻¹cm². equiv⁻¹) of 1N acetic acid is ......