Question Paper from: IIT JEE Main 2021 TestSeries Paper 1

The number of isomers possible for the octahedral complex [CoCl₂(en)(NH₃)₂]⁺ is

All spinel structures have

Which is the correct arrangement of molecules regarding dipole moment?

Tautomerism is not exhibited by

If E₁, E₂, and E₃ represent respectively the kinetic energies of an electron, $\alpha -$ particle, and a proton each having same de Broglie's wavelength then

In the first-order reaction t_99.9% is 60 minutes, t_50%of the reaction would be nearly

When copper is heated with conc HNO₃. It produces

Select the incorrect statement for B₂H₆

The mole fraction of glucose in an aqueous solution is 0.2 then the molality of the solution will be

Which is the correct statement about the gold number?

If element A shows two cationic states +2 and +3 and form oxides in such a way that the ratio of the element showing +2 and +3 state is 1:3 in a compound. The formula of the compound will be.

A metal exists as an oxide with the formula M_0.96O. Metal M can exist as M⁺² and M⁺³ in its oxide M_0.96O. The percentage of M⁺³ in the oxide is nearly.

The electron identified by quantum number n and l

(i) n = 4, l = 1

(ii) n = 4, l = 0

(iii) n = 3, l = 0

(iv) n = 3, l = 1

can be placed in order of increasing energy

Glucose is an aldose. Which one of the following reactions is not expected with glucose?

Match the metal ions given in Column - I with the magnetic moments of the ions given in column - II and assign the correct code

Reagent A is?

The total number of stereoisomers of the compound 2,4-dichloro heptane are ?

Predict the product Z in the following series of reactions.

Ethanoic acid $\stackrel{PC{l}_5}{\to }$ X $\underset{AnhyAlC{l}_3}{\overset{C_6{H}_6}{\to }}$ Y $\underset{H_3{O}^{+}}{\overset{C{H}_{3}MgBr}{\to }}$. Z