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Chemistry · Some Basic Concepts of Chemistry

हिन्दी

In the SI system, which of the following lists represents ONLY base physical quantities?

  1. Force, Amount of substance, Time, Thermodynamic temperature
  2. Mass, Amount of substance, Electric charge, Time
  3. Energy, Luminous intensity, Electric current, Length
  4. Length, Electric current, Thermodynamic temperature, Luminous intensity

Correct answer · Option 4

Length, Electric current, Thermodynamic temperature, Luminous intensity

Explanation

The seven SI base quantities are length, mass, time, electric current, thermodynamic temperature, amount of substance, and luminous intensity. Electric charge and energy are derived quantities.

Related questions

Consider the following statements regarding the classification of matter: (A) Air is a homogeneous mixture. (B) Glucose contains carbon, hydrogen, and oxygen in a fixed ratio and is classified as a pure substance. (C) The components of a homogeneous mixture are visible distinctly with the unaided eye. (D) Pure substances can have variable composition depending on their preparation method. How many of the above statements are correct?→What defines a limiting reagent in a chemical reaction?→According to the convention for rounding off numbers, if the rightmost digit to be removed is \( 5 \), followed by no other digits, which of the following pairs are correctly rounded off to two significant figures?→Which of the following physical quantities is an SI base quantity, along with its correct standard SI unit symbol?→
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