Classification of Organisms and cell structure | Class-9 and 11 MCQ Paper

Classification of Organisms and cell structure | Class-9 and 11 MCQ Paper Biology

Topic - Kingdom, basic structure of cell, and cell organelles. MCQ Paper Biology

    Classification of organisms and Cell structure-1

    Classification of organisms and Cell structure-2

    Classification of organisms and Cell structure-3

    Classification of organisms and Cell structure-4

Acid-Base Reaction | Class-10 and 11 | MCQ Paper

    Acid-Base Reaction | Class-10 and 11 | MCQ Paper

Chemicals are widely used in every field of life. Even almost all our biological activities are regulated through chemicals. Soaps, detergent, beautiful clothes and various articles of domestic use are made up of chemical substances

            

Acid and Base are used in our daily work. Base like Caustic soda used in manufacture of soap, Baking soda used in kitchen and bakery product and remove acidity.

Acid like HCl, Sulphuric acid used in the hospital, factory, school etc. Vinegar, Tamarind, Lemon, Tomato, orange etc are natural source of acid

             MCQ Papers on Acid-Base for Practice are given below    

        Acid-Base reaction-1

        Acid-Base reaction-2

        Acid-Base reaction-3

        Acid-Base reaction-4

Structure of Atom | Class-9, 10 and 11 Chemistry MCQ Paper

Structure of Atom | Class-9, 10 and 11 Chemistry MCQ Paper

Atom is the smallest particle of matter. Atom is made up of  electron, proton and neutron. These particles are known as subatomic particles. Scientist like J. Dalton, J. J Thomson, Goldstein,  Chadwick, Neil Bohr, Rutherford etc and other scientist gave contribution to explain the structure. Important MCQ on atomic structure are given below:-

      Structure of Atom-1

      Structure of Atom-2    

      Structure of Atom-3

      Structure of Atom-4