NEET Chemistry
Empirical Molecular Formula
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2008 Questions 3 MCQs
01
PYQ 2008
easy
chemistry ID: neet-200
An organic compound contains carbon, hydrogen, and oxygen. If elemental analysis reveals 38.71% carbon and 9.67% hydrogen, which of the following is its empirical formula?
| 1. | CH3O | 2. | CH2O |
| 3. | CHO | 4. | CH4O |
1
(1)
2
(2)
3
(3)
4
(4)
02
PYQ 2021
easy
chemistry ID: neet-202
An organic compound contains 80 % (by wt.) carbon and the remaining percentage of hydrogen. The empirical formula of this compound is:
[Atomic wt. of C is 12, H is 1]
1. CH3
2. CH4
3. CH
4. CH2
1
(1)
2
(2)
3
(3)
4
(4)
03
PYQ 2024
easy
chemistry ID: neet-202
A compound X contains 32% of A, 20% of B and remaining percentage of C. Then, the empirical formula of X is :
(Given atomic mass of A = 64; B = 40; C = 32u)
1. ABC3
2. AB2C2
3. ABC4
4. A2BC2
(Given atomic mass of A = 64; B = 40; C = 32u)
1. ABC3
2. AB2C2
3. ABC4
4. A2BC2
1
(1)
2
(2)
3
(3)
4
(4)