Practice free Some Basic Concepts in Chemistry (Chemistry) NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
A container is filled with 2L of water. What will be the volume of water in m3?
The volume of a liquid is typically measured in liters (L) or cubic meters (m^3). 1 L = 1 x 10^-3 m^3. Therefore, 2 L = 2 x 10^-3 m^3.
The mass of carbon -12 atom considered in the definition of a mole is
Chose the incorrect statement .
The incorrect statement is 'The properties of a compound are same as its constituent elements.' A compound has different properties than its constituent elements due to the formation of new bonds and the rearrangement of atoms in a specific way.
Which of the following is a pair of physical and chemical property respectively of a substance ?
What is the symbol of S.I. unit for the amount of substance ?
The SI unit for the amount of substance is 'mol' (mole). It represents the number of particles (atoms, molecules, ions, etc.) present in a given substance. One mole contains approximately 6.022 × 10^23 particles, known as the Avogadro constant.
Find the correct relation.
In chemistry a number is represented in the form $ N \times 10^n $ . This method of expressing the number is called scientific notation. What is the value of ‘N’ here.
What is the correct scientific notation for 0.00016 ?
How many significant digits are there in 0.25 ?
Significant figures are the digits that carry meaning and contribute to the value of a number. In 0.25, both digits (2 and 5) are significant figures, so the answer is 2 significant digits.
What is the number of neutrons in $ Zn^{2+} $ ion (Atomic mass number = 70) (IITJEE 1979)
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