Two students performed the same experiment separately, and each of them recorded two readings of mass, which are given below. The correct reading of mass is 3.0 g. On the basis of the given data, mark the correct option out of the following statements.

Students Readings
(i) (ii)
    A 3.01 2.99
    B 3.05 2.95

1. The results of both the students' are neither accurate nor precise.
2. The results of student A are both precise and accurate.
3. Student B's results are neither precise nor accurate.
4. The results of student B are both precise and accurate.

Subtopic:  Introduction |
 67%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

A reading on Fahrenheit scale is 200°F. The same reading on celsius scale will be :

1. 40°C 2. 94°C
3. 93°C 4. 30°C
Subtopic:  Introduction |
 66%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The molarity of a solution containing 5.85 g of NaCl(s) per 500 mL of solution is -

1. 4 mol L-1

2. 20 mol L-1

3. 0.2 mol L-1

4. 2 mol L-1

Subtopic:  Concentration Based Problem |
 90%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

If 500 mL of a 5 M solution is diluted to 1500 mL, the molarity of the resultant solution is: 

1. 1.5 M

2. 1.66 M

3. 0.017 M

4. 1.59 M

Subtopic:  Concentration Based Problem |
 82%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The highest number of atoms is present in:

1. 4 g He

2. 46 g Na

3. 0.40 g Ca

4. 12 g He

Subtopic:  Moles, Atoms & Electrons |
 84%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

If the concentration of glucose  (C6H12O6)  in the blood is 0.9 g L-1, then the molarity of glucose in the blood is 
1. 5 M
2. 50 M
3. 0.005 M
4. 0.05 M

Subtopic:  Concentration Based Problem |
 78%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The molality of a solution containing 18.25 g of HCl gas in 500 g of water is -

1. 0.1 m 2. 1 M
3. 0.5 m 4. 1 m
Subtopic:  Concentration Based Problem |
 69%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The number of molecules of H2SO4 present in 100 mL of 0.02 M H2SO4 solution is: 

1. 12.044×1020 molecules

2. 6.022×1023 molecules

3. 1×1023 molecules

4. 12.044×1023 molecules

Subtopic:  Concentration Based Problem |
 79%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The mass percent of carbon in carbon dioxide is : 

1. 0.034% 2. 27.27%
3. 3.4% 4. 28.7%
Subtopic:  Concentration Based Problem |
 82%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The empirical formula and molecular mass of a compound are CH2O and 180 g, respectively. The molecular formula of the compound is -

1.  C9H18O9 2.  CH2O
3.  C6H12O6 4.  C2H4O2
Subtopic:  Empirical & Molecular Formula |
 90%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh