the unconditional guru https://validator.w3.org/feed/docs/rss2.html Write the balanced equation for the following chemical reactions Hydrogen and chlorine gives hydrogen chloride , Barium chloride and Aluminium sulphate gives Barium sulphate, Aluminium chloride sodium plus water gives sodium hydroxide and hydrogen gas The following reaction is used for the preparation of oxygen gas in the laboratory , Which of the following statement(s) is/are correct about the reaction? Write a balanced chemical equation with state symbols for the following reactions . (i) solutions of barium chloride and sodium sulphate in water react to give insoluble barium sulphate and solution of sodium chloride . (ii) Sodium hydroxide solution (in water) reacts with hydrochloric acid solution (in water) to produce sodium chloride solution and water . A solution of a substance X is used for whitewashing Why is the amount of gas collected in one of the test tubes in activity 1.7 is double of the gas collected in the other? name the gas . Why does the colour of copper sulphate solution change when an iron nail is dipped in it? Give an example of double displacement reaction other than the one given in 1.10. Preparation of phenol from chlorobenzene (Dow’s process) Synthesis of Phenol from Chlorobenzene Understanding Sandmeyer’s Reaction: Chlorobenzene and Bromobenzene Production Why do the aquatic animals feel more comfortable in winter than in summer ? What do you mean by standard hydrogen electrode (S.H.E) ? What is the potential of S.H.E Standard hydrogen electrode ? Arrange the following metals in order in which they displace each other from the solutions of their salts. Al, Cu, Fe, Mg and Zn. Why rusting of iron is more in saline water than that of normal water ? Why Aluminium metal cannot be produced by the electrolysis of aqueous solution of aluminium salt ? How the alkaline medium prevents the rusting of iron ? Home How does the value of rate constant vary with reaction concentration ? What is meant by elementary step in a reaction ? Why are pantahalides more covalent than trihalides? what are ambident nucleophiles ? Explain why the dipole moment of chlorobenzene is lower than cyclohexyl chloride ? Explain why alkyl halides , though polar , are immiscible with water? Explain why grignard reagents should be prepared under anhydrous conditions ? What is the formula of DDT and what are its uses ? Is smoke a homogeneous solution ? Oil and water don’t mix . why ? How is that alcohol and water are miscible in all proportions ? NaCl is soluble in water but not in benzene . Why ? Which concentration term remains unaffected by temperature ? Why does the molality remains unchanged unaffected with change in temperature ? Why is molality is preferred over molarity if the solution ? How does the molarity of solution changes with change in temperature ? Explain the term ‘Mole fraction’ . what is the chemical formula for water ? why soda water and soft drinks are packed sealed under high pressure ? What is the lowest common oxidation state of transition metals ? Complexes of which transition metal are useful in the polymerisation of alkynes ? In which industry silver bromide (AgBr) is used ? Name the compound used in Wacker process of oxidation of ethyne to ethanol. What is Ziegler-Natta catalyst ? What are the coinage metals ? Why they are called so? Name the transition metal used in battery industry. What is the highest oxidation state shown by lanthenoids ? Which compound of transition metal is used in dry cell ? Name the transition metal compound used in pigment industry. Name the components of steel. Blog