Chemistry Test ...

In Millikan's experiment, the static electric charge on the oil drops has been obtained by shining X-rays. If the static electric charge on the oil drop is 1.282 × 10 − 18 C. Calculate the number of electrons present on it.

The following is the blood-red compound in the qualitative analysis of nitrogen and sulphur together:

The decomposition of A into product has value of k as 4.5×10³ s⁻¹ at 10^∘C and energy of activation 60 kJ mol⁻¹. At what temperature (in kelvin) would k be

1.00 g of non-electrolyte solute dissolved in 50 g of benzene lowered the point of benzene by 0.40 K. The freezing point depression constant of benzene is 5.12 K kg/mol. Find the molar mass of the solute.

One mole of a non-ideal gas undergoes a change of state (2.0 atm, 3.0 L,95 K) → (4.0 atm,5.0 L,245 K) with a change in internal energy, ΔU=30.0 L atm. The change in enthalpy (ΔH) of the process in L atm is:

Replacement of Cl of chlorobenzene to give phenol requires drastic conditions, but Cl of 2,4-dinitrochlorobenzene is readily replaced. This is because:

Benzene diazonium chloride on reaction with aniline in the presence of dilute hydrochloric acid gives:

Increasing order of electronegativity is:

Which of the following is not a subatomic particle?

When is the Intramolecular hydrogen bond formed?