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

When dry cell is in use the change taking place at cathode is ______.

Which among the following elements belongs to second inner transition series?

Which among the following elements does NOT form oxocation?

Consider the given reaction, percentage yield of:

Which oxide of nitrogen is obtained on heating ammonium nitrate at 250°C?

In Duma's method, 0.52 g of an organic compound on combustion gave 68.6 mL N₂ at 27°C and 756 mm pressure. What is the percentage of nitrogen in the compound?

What is the general molecular formula of the products obtained on heating lanthanoids (Ln) with sulphur?

100 g of an ideal gas is kept in a cylinder of 416 L volume at 27°C under 1.5 bar pressure. The molar mass of the gas is ______ g mol⁻¹.

In dry cell, what acts as a negative electrode?

In case of substituted aniline the group which decreases the basic strength is ______.

120 g of an ideal gas of molecular weight 40 g mol⁻¹ are confined to a volume of 20 L at 400 K.
Using R = 0.0821 L atm K⁻¹ mol⁻¹, the pressure of the gas is ______.

Which among the following equations represents the reduction reaction taking place in lead accumulator at positive electrode, while it is being used as a source of electrical energy?

Excess of ammonia with sodium hypochloride solution in the presence of glue or gelatine gives ______.

What is the density of the solution of sulphuric acid used as an electrolyte in a lead accumulator?

What is the geometry of a water molecule?

The number of bonding pairs and lone pairs of electrons present in the central atom of ammonia molecular are respectively.

A gas is heated from 273 K to 373 K at 1 atm pressure. If the initial volume of the gas is 10 L, its final volume would be ______.

Solubility product of AgBr is 4.9 × 10^-13. What is its solubility?

What is the number of lone pair of electrons in IF₇?

Identify compound having square pyramidal-shape:from following.