Day 475: JEE Mains Chemistry
5 questions. Try each one first, then open its answer.
Question 1
Aldehydes, Ketones and Carboxylic Acids. Asked once: 5 Apr 2024
39Identify 'A' in the following reaction:Tap an option to check your answer.
Question 2
Amines. Asked once: 31 Jan 2024
143A compound (x) with molar mass undergoes acetylation to give product with molar mass . The number of amino groups in the compound is ___Question 3
Biomolecules. Asked once: 25 Jan 2023
46Match items of Row I with those of Row II. Row I: the ring structures (A), (B), (C) and (D) shown in the figure. Row II: (i) -D-(-)-Fructofuranose, (ii) -D-(-)-Fructofuranose, (iii) -D-(+)-Glucopyranose, (iv) -D-(+)-Glucopyranose Correct match isTap an option to check your answer.
Question 4
Chemical Bonding and Molecular Structure. Asked once: 25 Jan 2023
136Statement I: Dipole moment is a vector quantity and by convention it is depicted by a small arrow with tail on the negative centre and head pointing towards the positive centre. Statement II: The crossed arrow of the dipole moment symbolizes the direction of the shift of charges in the molecules. In the light of the above statements, choose the most appropriate answer from the options given below:Tap an option to check your answer.
Question 5
Chemical Kinetics. Asked once: 6 Apr 2024
148Consider the two different first order reactions given below (Reaction 1) (Reaction 2) The ratio of the half-life of Reaction 1 : Reaction 2 is . If and represent the time taken to complete and of Reaction 1 and Reaction 2, respectively, then the value of the ratio is ____ (nearest integer). [Given: and ]