Day 482: JEE Mains Chemistry
5 questions. Try each one first, then open its answer.
Question 1
Some Basic Concepts of Chemistry. Asked once: 2021 Paper 20
48The unit of the van der Waals gas equation parameter 'a' in is :Tap an option to check your answer.
Question 2
Structure of Atom. Asked once: 8 Apr 2023
60The number of following statement/s which is/are incorrect is___ (A) Line emission spectra are used to study the electronic structure (B) The emission spectra of atoms in the gas phase show a continuous spread of wavelength from red to violet (C) An absorption spectrum is like the photographic negative of an emission spectrum (D) The element helium was discovered in the sun by spectroscopic methodQuestion 3
The d- and f-Block Elements. Asked once: 28 Jul 2022
129Given below are two statements: One is labelled as Assertion and the other is labelled as Reason Assertion A: Permanganate titrations are not performed in presence of hydrochloric acid. Reason R: Chlorine is formed as a consequence of oxidation of hydrochloric acid. In the light of the above statements, choose the correct answer from the options given belowTap an option to check your answer.
Question 4
The p-Block Elements. Asked once: 27 Jan 2024
1471 mole of is oxidised by " " moles of to get "Y" moles of ____Question 5
Alcohols, Phenols and Ethers. Asked once: 27 Jan 2024
130Match List-I with List-II. Choose the correct answer from the options given below:Tap an option to check your answer.