Metals and Non-metals Notes Physical properties of metals:- They are solid in state except mercury (liquid). They are malleable i.e., they can be beaten into thin sheet.Gold and silver are most malleable metals. They are ductile i.e., they can be drawn into thin wire.Gold is the most ductile metal. They are good conductors of heat […]
Acids, Bases and Salts Previous Years Questions Few drops of aqueous solution of ammonium chloride are put on a universal indicator paper. The paper turns pink. Study the following table and choose the correct option. [1 mark] [ CBSE 2023] Two salts ‘X’ and ‘Y’ are dissolved in water separately. when phenolphthalein is added to […]
Acids, Bases and Salts Important Questions Name the substance used in softening water. Tooth enamel is the hardest substance of the body due to which substance? What are alkalies? Give examples. Why should curd and sour substances not be kept in brass and copper vessels? You have been provided with three test tubes containing distilled […]