Last seen: Nov 14, 2021
Sugar contains Carbon, hydrogen and oxygen. Common salt comprise of sodium and chlorine.
Elements - Iron, Sulphur, Sodium and Carbon Compounds - Iron sulphide, Chalk, Washing Soda and Urea.
(i) H2O – Compound (ii) He – Element (iii) Cl2 – Element (iv) CO – Compound (v) Co – Element
(a) An element is made up of only one kind of atoms. (b) Brine is a mixture whereas alcohol is a compound. (c) Brass is an alloy which is consid...
Metalloids are those elements which are neither good conductors of electricity like copper nor insulators like sulphur.
Mixtures consist of two or more constituents in any proportion which is either distinct or indistinct. Whereas solution are homogenous mixture which i...
Sulphur is an element, water is a compound and air is a mixture.
The given statement best describes about a compound having different property from those of its constituents.
Mixtures are the materials which contain at least two pure substances and show the properties of the constituents.
Metals are lustrous because they are shining in nature.
Metals are sonorous because they make sound when we strike on them.
Non-metals are brittle because they are had but liable to break easily.
Malleability is the property of metals to be hammered into thin sheets. Ductility is the property to enable metals to be drawn into wires.
Non-Metals show brittleness because they are hard but liable to break easily.
(a) Malleability is the property of metals to be hammered into thin sheets. (b) Ductility is the property to enable metals to be drawn into wires.
Carbon is a solid non-metal, Bromine is a liquid non-metal and chlorine is a gaseous non-metal.
Mercury is a liquid metal that can be classified as a pure substance and conducts electricity.
Diamond is a non-metal which is extremely hard and a good conductor of electricity.
Sodium is the soft metal and diamond is extremely hard non-metal which is the allotrope of carbon.
Mercury is a liquid metal and bromine is a liquid non-metal which exist as liquids at room temperature.