NTA JEE Mains 1st Feb 2024 Shift 1

In Kjeldahl's method for estimation of nitrogen, $$CuSO_4$$ acts as :

Which of the following compound will most easily be attacked by an electrophile? 

We have three aqueous solutions of NaCl labelled as 'A', 'B' and 'C' with concentration $$0.1$$ M, $$0.01$$ M and $$0.001$$ M, respectively. The value of van't Hoff factor $$i$$ for these solutions will be in the order:

Which of the following complex is homoleptic?

Given below are two statements: Statement (I): A solution of $$[Ni(H_2O)_6]^{2+}$$ is green in colour. Statement (II): A solution of $$[Ni(CN)_4]^{2-}$$ is colourless. In the light of the above statements, choose the most appropriate answer from the options given below:

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Haloalkanes react with KCN to form alkyl cyanides as a main product while with AgCN form isocyanide as the main product. Reason R: KCN and AgCN both are highly ionic compounds. In the light of the above statement, choose the most appropriate answer from the options given below:

Identify A and B in the following sequence of reaction:

Choose the correct answer from options given below:

Given below are two statements: Statement (I): The $$-NH_2$$ group in Aniline is ortho and para directing and a powerful activating group. Statement (II): Aniline does not undergo Friedel-Craft's reaction (alkylation and acylation). In the light of the above statements, choose the most appropriate answer from the options given below:

If one strand of a DNA has the sequence ATGCTTCA, sequence of the bases in complementary strand is: