JEE Main 2024 (Online) 31st January Evening Shift | JEE Main Year Wise Previous Years Questions

JEE Main 2024 (Online) 31st January Evening Shift

MCQ (Single Correct Answer)

-1

Select the option with correct property -

$$\left[\mathrm{Ni}(\mathrm{CO})_4\right]$$ and $$\left[\mathrm{NiCl}_4\right]^{2-}$$ both Paramagnetic

$$\left[\mathrm{Ni}(\mathrm{CO})_4\right]$$ and $$\left[\mathrm{NiCl}_4\right]^{2-}$$ both Diamagnetic

$$\left[\mathrm{NiCl}_4\right]^{2-}$$ Diamagnetic, $$\left[\mathrm{Ni}(\mathrm{CO})_4\right]$$ Paramagnetic

$$\left[\mathrm{Ni}(\mathrm{CO})_4\right]$$ Diamagnetic, $$\left[\mathrm{NiCl}_4\right]^{2-}$$ Paramagnetic

JEE Main 2024 (Online) 31st January Evening Shift

MCQ (Single Correct Answer)

-1

Which of the following is least ionic?

CoCl$$_2$$

KCl

BaCl$$_2$$

AgCl

JEE Main 2024 (Online) 31st January Evening Shift

MCQ (Single Correct Answer)

-1

The four quantum numbers for the electron in the outer most orbital of potassium (atomic no. 19) are

$$\mathrm{n}=3, l=0, \mathrm{~m}=1, \mathrm{~s}=+\frac{1}{2}$$

$$\mathrm{n}=4, l=0, \mathrm{~m}=0, s=+\frac{1}{2}$$

$$\mathrm{n}=2, l=0, \mathrm{~m}=0, s=+\frac{1}{2}$$

$$\mathrm{n}=4, l=2, \mathrm{~m}=-1, s=+\frac{1}{2}$$

JEE Main 2024 (Online) 31st January Evening Shift

MCQ (Single Correct Answer)

-1

Identify the name reaction.

JEE Main 2024 (Online) 31st January Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 51 English

Stephen Reaction

Etard Reaction

Gatterman - Koch Reaction

Rosenmund Reduction

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