What is the formula of limewater? What is the formula of limewater? A. CaCl2 B. Ca(OH)2 C. CaCo3 D. CaO B. Ca(OH)2 The chemical formula of limewater...Read More
What is the formula of quicklime? What is the formula of quicklime? A. CaO B. Ca(OH)2 C. CaCo3 D. CaCl2 A. CaOThe chemical formula of quicklime...Read More
Which particles are present in the nucleus of an Atom? Which particles are present in the nucleus of an Atom? A. Electron and proton B.Only electrons C. Electron and neutron...Read More
Alum is used in which? Alum is used in which? A. In the purification of water B. As a fertilizer C. As a disinfectant D....Read More
Which type of solid has a definite and sharp melting point? Which type of solid has a definite and sharp melting point? A. All types of solids B.Amorphous solid C. Crystalline...Read More
The neutron was discovered by whom? The neutron was discovered by whom? A. Madam Curie B.Chadwick C. Dalton D. Becquerel B. Chadwick The neutron was discovered...Read More
What is the value of Avogadro Number? What is the value of Avogadro Number? A. 5.022 × 10^23 B. 6.022 x 10^23 C. 7.022 x 10^23 D....Read More
Which is called as ‘the King of Chemicals’? Which is called as ‘the King of Chemicals'? A. Acetic Acid B. Hydrochloric acid C. Silver nitrate D. Sulphuric acid...Read More
A mixture of ethyl alcohol and water can be separated by which method? A. Using a separating funnel B. Sublimation C. Evaporation D. Fractional distillation D. Fractional distillation A mixture of alcohol (ethyl...Read More
What is the symbol of cadmium? What is the symbol of cadmium? A. Ca B. Cu C. Cm D. Cd D. CdCadmium is a chemical element...Read More
Which element is preserved under the water? Which element is preserved under the water? A. Red phosphorus B. Sodium C. White phosphorus D. Sulphur C. White phosphorusWhite...Read More
All noble gas molecules are which type? All noble gas molecules are which type? A. Diatomic B. Monoatomic C. Triatomic D. Non of the above B. MonoatomicNoble...Read More
The Long Form of the Periodic Table is based on? The Long Form of the Periodic Table is based on? A. Atomic number B. Atomic radius C. Atomic mass D....Read More
Which non-metal has a shining appearance ? Which non-metal has a shining appearance? A. Phosphorus B. Sulphur C. Iodine D. Bromine C. IodineNon metals usually have a...Read More