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 is Ca(OH)2 and the chemical …
Chemistry
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 is CaO and the chemical …
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 D. Proton and neutron D. …
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. As an analgesic A. In …
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 solids D. Non of the …
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 by James Chadwick which is …
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. 6.05 x 10^23 B. 6.022 …
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 D. Sulphuric acid Sulfuric acid …
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 alcohol) and water is separated …
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 with the symbol Cd and …