Find the correct increasing order of dipole moment among the following molecules:

When neutral or faintly alkaline $KMn{O}_4$ is treated with potassium iodide, iodide ion is converted into 'X'. 'X' is:

1. $I_2$

2. $I{O}_4^{-}$

3. $I{O}_3^{-}$

4. $I{O}^{-}$

Which structure corresponds to the IUPAC name 3-Ethyl-2-hydroxy-4-methylhex-3-en-5-ynoic acid?

1.		2.
3.		4.

For a reaction, the activation energy is zero, and the rate constant at 200 K is 1.6 × 10⁶ s⁻¹.
Find the rate constant at 400 K.

Given: R = 8.314 J K⁻¹ mol⁻¹.

Which of the following is a paramagnetic compound?

1. ${\mathrm{N}}_2$

2. ${\mathrm{H}}_2$

3. ${\mathrm{Li}}_2$

4. ${\mathrm{O}}_2$

Which structure(s) of proteins remains(s) intact during denaturation process?

1. Both secondary and tertiary structures

2. Primary structure only

3. Secondary structure only

4. Tertiary structure only

In hydrogen atom, what is the de Broglie wavelength of an electron in the second Bohr orbit is: [Given that Bohr radius, $a_0=52.9$ $pm$]

1. 211.6 pm

2. 211.6 $\mathrm{\pi }$pm

3. $52.9$ $\mathrm{\pi }$pm

4. 105.8 pm

What is the correct order of the carboxylic acids' strength?

I.

II.

III.