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Q1. A substance ‘X’ is used in white-washing and is obtained by heating limestone in the absence of air. The substance ‘X’ is (A) CaOCl2 (B)...

Q1. Balanced equation of Fe + H2O → Fe3O4 + H2 is (A) Fe + 4H2O → Fe3O4 + H2 (B) Fe + 4H2O → Fe3O4...

Q1. In which of the following category will you put the reaction of heating of calcium carbonate? (A) Decomposition reaction (B) Thermal decomposition reaction (C) Endothermic reaction (D)...

Q1. In which of the following heat is absorbed generally? (A) Combination reaction (B) Decomposition reaction (C) Displacement reaction (D) Double displacement reaction Q2. Which of the following is...

Q1. Dilute hydrochloric acid is added to granulated zinc taken in a test tube.The following observations are recorded. Point out the correct observation. (A) The...

Q1. In the double displacement reaction between aqueous potassium iodide and aqueous lead nitrate, a yellow precipitate of lead iodide is formed. While performing the...

Q1. In which of the following equations, the mass is not same on both the sides (A) Word equation (B) Skeletal equation (C) Balanced equation (D) Both (a)...

Over the last 20 years, information and communication technology has evolved significantly, with...

Many office workers have become remote workers as a result of the coronavirus pandemic, and this trend...

Since decades, global automakers have been frantically attempting to find innovative and sustainable alternatives to fossil fuels. The overall destruction of the...