Explore Questions on "Engineering Entrance & IITJEE - Chemistry"

What are the important questions in chemical equilibrium?

Help me to calculatte the sum.

What number of water molecules removed when sulphuric acid react with copper?

Please answer the following question.

What is the PH level of NaOH?

Is \(NaCl\) buffer?

Is \(NaHCO_3\) an acid or a base?

What is sky wave propagation?

Why is paper chromatography a partition chromatography?

Which is more acidic H\(_3\)PO\(_4\) or H\(_3\)PO\(_3\)?

Cannizzaros’ reaction is given by:

The compound which can act as oxidizing as well as reducing agent is

Magnesium displaces hydrogen from dilute acid solution because:

Tungsten crystallizes in body centred cubic unit cell. If the edge of the unit cell is 316.5 pm. What is the radius of tungsten atom?

When electric current is passed through a cell containing the electrolyte + ve ions move towards the cathode and – ve ions move towards anode. If the cathode is pulled out of the solution.

Which of the following characteristic is wrong for physical adsorption? Please help me to find the correct answer.

The degree of dissociation of Ca(NO\(_3\) )\(_2\) in a dilute aqueous solution containing 14g of the salt per 200g of water 100\(^0\) c is 70 percent. If the vapour pressure of water at 100\(^0\) c is 760 cm. Please help me to calculate the vapour pressure of the solution.

An aqueous solution of 6.3 g of oxalic acid dihydrate is made up of to 250 ml. The volume of 0.1N NaOH required to completely neutralise 10 ml of this solution is.

A hydrogen electrode X was placed in a buffer solution of sodium acetate and acetic acid in the ratio a:b and another hydrogen electrode Y was placed in a buffer solution of sodium acetate and acetic acid in the ratio b:a. If reduction potential values for two cells are found to be E\(_1\) and E\(_2\)respectively w.r.t. standard hydrogen electrode, what would be the pKa values of the acid? Please explain the answer in brief.

Compound A has molecular formula C\(_2\) Cl\(_3\) OH. It reduces Fehling’s solution and on oxidation it gives monocarboxylic acid, B. If A is obtained by the action of chlorine on ethyl alcohol, the compound A is.

In a cubic closed packed Structure of mixed oxides, the lattice is made up of oxide ions, one eighth of tetrahedral voids are occupied by divalent ions (A\(^{2+}\) ), while one half of the octahedral voids are occupied by trivalent ions (B\(^{3+}\)). What is the formula of the oxide?

Leveling bulb is used during the experiment to study the kinetics of the dissociation of hydrogen peroxide to ensure.