NTA JEE Mains 6th April 2024 Shift 1

The density of 'x' M solution ('X' molar) of NaOH is $$1.12 \text{ g mL}^{-1}$$, while in molality, the concentration of the solution is $$3 \text{ m (3 molal)}$$. Then $$x$$ is (Given : Molar mass of NaOH is $$40 \text{ g/mol}$$)

The electron affinity values are negative for A. $$\text{Be} \rightarrow \text{Be}^-$$ B. $$\text{N} \rightarrow \text{N}^-$$ C. $$\text{O} \rightarrow \text{O}^{2-}$$ D. $$\text{Na} \rightarrow \text{Na}^-$$ E. $$\text{Al} \rightarrow \text{Al}^-$$. Choose the most appropriate answer from the options given below :

Which of the following material is not a semiconductor.

Match List I with List II

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Match List I with List II 

Choose the correct answer from the options given below:

Match List I with List II

Choose the correct answer from the options given below:

At $$-20°C$$ and 1 atm pressure, a cylinder is filled with equal number of $$H_2$$, $$I_2$$ and $$HI$$ molecules for the reaction $$H_2(g) + I_2(g) \rightleftharpoons 2HI(g)$$, the $$K_p$$ for the process is $$x \times 10^{-1}$$. $$x =$$ _______ [Given : $$R = 0.082 \text{ L atm K}^{-1} \text{mol}^{-1}$$]

Functional group present in sulphonic acids is :

Which of the following statements are correct? A. Glycerol is purified by vacuum distillation because it decomposes at its normal boiling point. B. Aniline can be purified by steam distillation as aniline is miscible in water. C. Ethanol can be separated from ethanol water mixture by azeotropic distillation because it forms azeotrope. D. An organic compound is pure, if mixed M.P. is remained same. Choose the most appropriate answer from the options given below :

Which of the following is metamer of the given compound (X)?