Day 434: JEE Mains Chemistry
5 questions. Try each one first, then open its answer.
Question 1
Some Basic Concepts of Chemistry. Asked once: 12 Apr 2023
39A metal chloride contains of chlorine by weight. vapours of the metal chloride at STP weigh . The molecular formula of the metal chloride is (Given: Atomic mass of chlorine is )Tap an option to check your answer.
Question 2
Structure of Atom. Asked once: 29 Jan 2025
102For hydrogen like species, which of the following graphs provides the most appropriate representation of E vs Z plot for a constant n ? [E : Energy of the stationary state, Z : atomic number, principal quantum number]Tap an option to check your answer.
Question 3
The d- and f-Block Elements. Asked once: 31 Jan 2024
41Identify correct statements from below: (A) The chromate ion is square planar. (B) Dichromates are generally prepared from chromates. (C) The green manganate ion is diamagnetic. (D) Dark green coloured disproportionates in a neutral or acidic medium to give permanganate. (E) With increasing oxidation number of transition metal, ionic character of the oxides decreases. Choose the correct answer from the options given below:Tap an option to check your answer.
Question 4
The p-Block Elements. Asked once: 9 Apr 2024
36The ions make the enamel on teeth much harder by converting hydroxyapatite (the enamel on the surface of teeth) into much harder fluoroapatite having the formula.Tap an option to check your answer.
Question 5
Alcohols, Phenols and Ethers. Asked once: 8 Apr 2024
34Identify the major products and respectively in the following set of reactions.Tap an option to check your answer.