NTA JEE Mains 06th April 2024 Shift 2

Molality ($$m$$) of $$3M$$ aqueous solution of NaCl is : (Given : Density of solution $$= 1.25 \text{ g mL}^{-1}$$, Molar mass in $$\text{gmol}^{-1}$$: Na $$- 23$$, Cl $$- 35.5$$)

The ratio $$\frac{K_P}{K_C}$$ for the reaction : $$CO_{(g)} + \frac{1}{2} O_{2(g)} \rightleftharpoons CO_{2(g)}$$ is :

Match List - I with List - II.

Choose the correct answer from the options given below :

The number of ions from the following that are expected to behave as oxidising agent is : $$Sn^{4+}, Sn^{2+}, Pb^{2+}, Tl^{3+}, Pb^{4+}, Tl^{+}$$

Evaluate the following statements related to group 14 elements for their correctness. (A) Covalent radius decreases down the group from C to Pb in a regular manner. (B) Electronegativity decreases from C to Pb down the group gradually. (C) Maximum covalance of C is 4 whereas other elements can expand their covalance due to presence of d orbitals. (D) Heavier elements do not form $$p\pi - p\pi$$ bonds. (E) Carbon can exhibit negative oxidation states. Choose the correct answer from the options given below :

The correct statement among the following, for a "chromatography" purification method is :

The incorrect statement regarding the geometrical isomers of 2-butene is :

How can an electrochemical cell be converted into an electrolytic cell?

Arrange the following elements in the increasing order of number of unpaired electrons in it. (A) Sc (B) Cr (C) V (D) Ti (E) Mn. Choose the correct answer from the options given below :

The correct IUPAC name of $$[PtBr_2(PMe_3)_2]$$ is :