1
NEET 2024
MCQ (Single Correct Answer)
+4
-1
Change Language

1 gram of sodium hydroxide was treated with $$25 \mathrm{~mL}$$ of $$0.75 \mathrm{~M} \mathrm{~HCl}$$ solution, the mass of sodium hydroxide left unreacted is equal to

A
750 mg
B
250 mg
C
Zero mg
D
200 mg
2
NEET 2024
MCQ (Single Correct Answer)
+4
-1
Change Language

Arrange the following elements in increasing order of first ionization enthalpy: $$\mathrm{Li}, \mathrm{Be}, \mathrm{B}, \mathrm{C}, \mathrm{N}$$

Choose the correct answer from the options given below:

A
$$ \mathrm{Li}<\mathrm{Be}<\mathrm{B}<\mathrm{C}<\mathrm{N} $$
B
$$ \mathrm{Li}<\mathrm{B}<\mathrm{Be}<\mathrm{C}<\mathrm{N} $$
C
$$ \mathrm{Li}<\mathrm{Be}<\mathrm{C}<\mathrm{B}<\mathrm{N} $$
D
$$ \mathrm{Li}<\mathrm{Be}<\mathrm{N}<\mathrm{B}<\mathrm{C} $$
3
NEET 2024
MCQ (Single Correct Answer)
+4
-1
Change Language

The most stable carbocation among the following is :

A
NEET 2024 Chemistry - Some Basic Concepts of Organic Chemistry Question 12 English Option 1
B
NEET 2024 Chemistry - Some Basic Concepts of Organic Chemistry Question 12 English Option 2
C
NEET 2024 Chemistry - Some Basic Concepts of Organic Chemistry Question 12 English Option 3
D
NEET 2024 Chemistry - Some Basic Concepts of Organic Chemistry Question 12 English Option 4
4
NEET 2024
MCQ (Single Correct Answer)
+4
-1
Change Language

Activation energy of any chemical reaction can be calculated if one knows the value of

A
rate constant at standard temperature
B
probability of collision
C
orientation of reactant molecules during collision
D
rate constant at two different temperatures
EXAM MAP