Chemistry Test-...

Which is not true for enzymes?

The bond length of \(\mathrm{HCl}\) bond is \(2.29 \times 10^{-10} \mathrm{m} .\) The percentage ionic character of \(\mathrm{HCl}\), if measured dipole moment is \(6.226 \times 10^{-30} \mathrm{C}-\mathrm{m},\) is:

What is the numerical value of gas constant R,in lit atm mol⁻¹ K⁻¹?

Calculate the maximum work done when \(0.5 \mathrm{~mol}\) of a gas expands isothermally and reversibly from a volume of \(2 \mathrm{~L}\) to \(5 \mathrm{~L}\) at \(27^{\circ} \mathrm{C}\). What is the change in internal energy if \(200\) cal of heat is absorbed?

Hydrogen gas combines with nitrogen and forms ammonia. Which one of the following is the balanced equation for this chemical reaction?

Fill in the blanks by selecting the option with the correct words.

The process of removing impurities from the impure metal to obtain pure metal is known as __________ of metal. The most widely used method for refining is __________.In this method, the impure metal is taken as________ and the pure metal is taken as___________.

The major air pollutant is:

Which of the following 0.10m aqueous solution will have the lowest freezing point?

In a galvanic cell, the reactions taking place in the anodic half-cell and the cathodic half-cell will be:

The existence of intermolecular forces is supported by the facts: