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

Using the standard electrode potentials given below, identify the correct statements from the following:

\[\ce{Fe^2+ + 2e^- -> Fe}\]; E⁰ = −0.44 V

\[\ce{Cu^2+ + 2e^- -> Cu}\]; E⁰ = +0.34 V

\[\ce{Ag^+ + e^- -> Ag}\]; E⁰ = +0.80 V

(I) Copper can displace iron from FeSO₄ solution

(II) Iron can displace copper from CuSO₄ solution

(III) Silver can displace copper from CuSO₄ solution

(IV) Iron can displace silver from AgNO₃ solution

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?

Which among the following group-15 elements does not react with concentrated sulphuric acid?

The coordination number of each sphere in bcc lattice is ____________.

When X is treated with ethanoyl chloride in presence of pyridine, N-methyl-N-phenylethanamide is formed. Identify compound X.

In two dimensional AAAA type packing, the coordination number of each sphere is ____________.