Select Chapter Topics:
Q. No.Ratio of the number of atoms in 4g CH4 and 3g NH3 is:
1.
\(\dfrac{68} {48}\)
2.
\(\dfrac{85} {48}\)
3.
\(\dfrac{48} {68}\)
4.
\(\dfrac{48} {65}\)
Subtopic: Moles, Atoms & Electrons |
62%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
The mole fraction of a solute in an aqueous solution is 0.1. The molality of the solution, approximately, will be:
| 1. | 3.085 | 2. | 6.17 |
| 3. | 12.34 | 4. | 24.68 |
Subtopic: Concentration Based Problem |
77%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
The number of atoms in 560 g of Fe (atomic mass 56 g mol–1) is:
| 1. | Twice that of 70 g N |
| 2. | Half that of 20 g H |
| 3. | Both 1 and 2 |
| 4. | None of the above |
Subtopic: Moles, Atoms & Electrons |
71%
From NCERT
JEE
Please attempt this question first.
Hints
Please attempt this question first.
Subtopic: Introduction |
88%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
To neutralize 20 mL of 0.1 M aqueous solution of phosphorus acid \((H_3PO_3) \) completely, the volume of 0.1 M aqueous KOH solution required is:
| 1. | 10 mL | 2. | 20 mL |
| 3. | 40 mL | 4. | 60 mL |
Subtopic: Concentration Based Problem |
From NCERT
JEE
Please attempt this question first.
Hints
Please attempt this question first.
\(6.02\times10^{20}\) molecules of urea are present in 100 mL of its solution. The concentration of urea solution is:
(Avogadro constant, \(N_A=6.02\times10^{23}~mol^{-1}\))
1. 0.001 M
2. 0.01 M
3. 0.02 M
4. 0.1 M
Subtopic: Concentration Based Problem |
83%
From NCERT
JEE
Please attempt this question first.
Hints
Please attempt this question first.
Subtopic: Concentration Based Problem |
82%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
For the reaction, \(2A+B\xrightarrow{~~~~~~~~}3C,8\) moles of \(A\) reacts with \(5\) moles of \(B\) to form \(C.\)
Calculate the maximum number of moles that are formed.
Calculate the maximum number of moles that are formed.
| 1. | \(13\) mole | 2. | \(15\) mole |
| 3. | \(12\) mole | 4. | \(8\) mole |
Subtopic: Limiting Reagent |
78%
From NCERT
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Calculate the approximate mass of \(CO_2\) produced when 1 gm of butane \((C_4H_{10})\) is burned with
an excess of \(O_2\) to form \(CO_2\).
| 1. | 1 g | 2. | 2 g |
| 3. | 3 g | 4. | 4 g |
Subtopic: Equation Based Problem |
67%
From NCERT
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
10 gm carbon reacts with 100 gm \(Cl_2\) to form \(CCl_4.\) The maximum weight of \(CCl_4\) formed will be:
1. 128 gm
2. 94.22 gm
3. 108.45 gm
4. 54.22 gm
1. 128 gm
2. 94.22 gm
3. 108.45 gm
4. 54.22 gm
Subtopic: Limiting Reagent |
60%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Select Chapter Topics:
© 2025 GoodEd Technologies Pvt. Ltd.