AIIMS 2019

(i) \(\mathrm{F}_3 \mathrm{C}-\mathrm{COOH}\), (ii) \(\mathrm{CH}_3 \mathrm{COOH}\),
(iii) \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{COOH}\), (iv) \(\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{COOH}\)
Correct order of \(\mathrm{p} K_a\) value is

Write IUPAC name of following compound.

Correct order of basic strength is

Which is most stable conformer of ethan-1,
2-diol?

A bulb is emitted electromagnetic radiation of \(660 \mathrm{~nm}\) wavelength. The total energy of radiation is \(3 \times 10^{-18} \mathrm{~J}\). The number of emitted photon will be
$$\left(h=6.6 \times 10^{-34}\right) \mathrm{J} \times ...

Assertion : The chemical properties of
different isotope are same.
Reason : Isotopes having same number of
neutron.

Assertion : A spherical water drops become
flaton flatter surface.
Reason : It become flat due to gravity.

The correct relation is

At \(25^{\circ} \mathrm{C}, 1\) mole of butane is heated then \(\mathrm{CO}_2\) and \(\mathrm{H}_2 \mathrm{O}\) liquid is formed work done is

Assertion : \(U\) is state function.
Reason : \(T\) is an intensive property.