Basic Concepts in Chemistry [BITSAT (Birla Institute of Technology & Science Admission Test) Chemistry]: Questions 1 - 7 of 44
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Question 1
Question MCQ▾
An aromatic molecule will
(1) Have (4n + 2) electrons
(2) Planar
(3) Be cyclic
(4) Have 4n electrons
Choices
Choice (4) | Response | |
---|---|---|
a. | 1,2 and 3 are correct | |
b. | 2 and 4 are correct | |
c. | 1 and 2 are correct | |
d. | 1 and 3 are correct |
Question 2
Question MCQ▾
Hydrogen and oxygen are combined in the ratio by mass in hydrogen peroxide. Calculate the percentage of hydrogen and oxygen in hydrogen peroxide?
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 3
Question MCQ▾
The equivalent weight of metal is double than that of oxygen. How many times is the weight of its oxide greater than the weight of metal?
Choices
Choice (4) | Response | |
---|---|---|
a. | 3.5 | |
b. | 2.5 | |
c. | 1.5 | |
d. | 0.5 |
Question 4
Question MCQ▾
Which of the following property is known as extensive property of matter?
Choices
Choice (4) | Response | |
---|---|---|
a. | Density | |
b. | Volume | |
c. | Melting point | |
d. | Colour |
Question 5
Question MCQ▾
From of molecules are removed. How many moles of are left?
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 6
Question MCQ▾
Calculate the mass of gram molecule of sulphuric acid?
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 7
Question MCQ▾
An organic compound containing C and H has carbon. What is it՚s empirical formula?
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |