MAH-MHT CET (PCM/PCB) entrance exam Question Bank Solutions for Chemistry

____________ and ____________ are the rarest elements of the group 18.

A metal crystallizes in bcc lattice with edge length 4.48 Å. The radius of the metal atom is ___________ Å.

In the Wolff-Kishner reduction of alkyl aryl ketones, ketones are first converted into ____________.

Identify the properties of group 17 elements that show decreasing trend down the group.

i. Atomic radius

ii. Ionisation enthalpy

iii. Electronegativity

Which one of the following ions has same number of unpaired electrons as those present in V³⁺ ion?

An element crystallises in a bee lattice with cell edge of 500 pm. The density of the element is 7.5 g cm^-3. How many atoms are present in 300 g of metal?

Which among the following compound is not optically active?

IUPAC name of p-toluidine is ____________.

Which of the foll9wing is INCORRECT for enantiomers?

The ratio of close-packed atoms to tetrahedral holes in cubic close packing is ____________.

Which of the following halogens has the least affinity towards hydrogen?

Which of the following is INCORRECT with respect to given reaction?

\[\ce{C6H12O6 + 6O2 -> 6CO2 + 6H2O}\]

EAN of Zn in [Zn(NH₃)₄]²⁺ is ______.

A metallic element crystallises in simple cubic lattice. If edge length of the unit cell is 3Å, with density 8 g/cc, what is the number of unit cells in 100 g of the metal?

(Molar mass of metal = 108 g/mol)

What is the effective atomic number of Zn in [Zn(NH₃)₄]SO₄?

Mixture of iodine and sodium sulphate is separated by ____________.

A compound has fcc structure. If density of unit cell is 3.4 g cm⁻³, what is the edge length of unit cell?

(Molar mass = 98.99)

Xenon crystallises in fcc lattice and the edge length of unit cell is 620 pm. What is the radius of Xe atom?

What is the highest oxidation state possessed by phosphorus in it's oxyacids?

What is the highest oxidation state possessed by phosphorus in it's oxyacids?