1
JEE Main 2023 (Online) 29th January Evening Shift
Numerical
+4
-1
Change Language

Total number of acidic oxides among

$$\mathrm{N_2O_3,NO_2,N_2O,Cl_2O_7,SO_2,CO,CaO,Na_2O}$$ and $$\mathrm{NO}$$ is ____________.

Your input ____
2
JEE Main 2023 (Online) 29th January Evening Shift
Numerical
+4
-1
Change Language

Assume that the radius of the first Bohr orbit of hydrogen atom is 0.6 $$\mathrm{\mathop A\limits^o }$$. The radius of the third Bohr orbit of He$$^+$$ is __________ picometer. (Nearest Integer)

Your input ____
3
JEE Main 2023 (Online) 29th January Evening Shift
Numerical
+4
-1
Change Language

For conversion of compound A $$\to$$ B, the rate constant of the reaction was found to be $$\mathrm{4.6\times10^{-5}~L~mol^{-1}~s^{-1}}$$. The order of the reaction is ____________.

Your input ____
4
JEE Main 2023 (Online) 29th January Evening Shift
MCQ (More than One Correct Answer)
+4
-1
Out of Syllabus
Change Language

The statement $$B \Rightarrow \left( {\left( { \sim A} \right) \vee B} \right)$$ is equivalent to :

A
$$B \Rightarrow \left( {\left( { \sim A} \right) \Rightarrow B} \right)$$
B
$$A \Rightarrow \left( {A \Leftrightarrow B} \right)$$
C
$$A \Rightarrow \left( {\left( { \sim A} \right) \Rightarrow B} \right)$$
D
$$B \Rightarrow \left( {A \Rightarrow B} \right)$$
JEE Main Papers
2023
2021
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
CBSE
Class 12