Periodic Properties - IIT JAM MCQ

Which process is different from other on the basis of enthalpy change?

Least acidic trihalide is:

Which of the following should be correct for Z₁ and Z₂ in the following two processes

Correct order of ionization potential of coinage metals is:

Which of the following process is used in extractive metallurgy of magnesium?

Solutions of equal strength of XOH and QOH are prepared. The I.P.’s of X and Q are 5.1 and 13.0 eV respectively, whereas their E.N’s are 0.9 and 3.2 respectively. Using the information spot the incorrect conclusion:

Choose the wrong order:

The correct order of the ionic radii is:

In which of the following pairs, both the hydrides are not of the same type:

The dipole moment of LiH is 1.964 × 10^–29 C-m and the interatomic distance between Li and H in this molecule is 1.596 Å. What is the percent ionic character in LiH:

The most abundant metal in the earth’s crust is:

The most probable oxidation states for both Cr and Mo are:

Two elements X and Y have following electronic configuration:

X: 1s²2s²2p⁶3s²3p⁶4s²

Y: 1s²2s²2p⁶3s²3p⁵

The expected compound formed by combination of X and Y will be expressed as:

In the commercial electrochemical process for aluminium extraction, the electrolyte used as:

In the process of extraction of gold,

Identify the complexes [X] and [Y]

Which of the following magnetic moment value will correspond to highest ionization energy from Mn species:

The pair of semimetals in the following is:

Incorrect order of ionic size is:

Which of the following metal is the strongest reducing agent in gas phase:

The electron affinity of oxygen family in the periodic table, follows the order:

Identify the correct order of acidic strengths of CO₂, CuO, CaO, H₂O

Arrange the following halogens in their bond energy order:

Among the following hydrides of their melting point:

Arrange the following elements in increasing order of their ionization energy.

Al, Ga, In, Tl

Which of the following has lowest melting point:

The intermolecular van der Waals’ potential is inversely proportional to r⁶. The corresponding force is proportional to:

Which of the following on heating do not decompose?