Q. A very small amount of electrical conductivity is measured in

View solution

Q. Elements with giant molecular structures and strong covalent bonds include

View solution

Q. Tin and lead have same metallic structure at

View solution

Q. In Group-IV, melting point decreases

View solution

Q. Under standard conditions common metallic form of tin is

View solution

Q. Acidic foods are mostly preserved with the help of a solution made from

View solution

Q. Sulfur compounds are present as impurities in

View solution

Q. Acid rain falls in streams, rivers, lakes and makes them

View solution

Q. Chemists have produced low sulfur version of petrol and diesel to reduce the emission of

View solution

Q. Sulfur dioxide is added to foods to stop

View solution

Q. Acid rain has effects on

View solution

Q. The waxy layer of plants are attacked which increases water loss hence making it prone to pest and bacteria which is due to

View solution

Q. Processed foods, pickles, syrups and fruit juices are stored in

View solution

Q. The optimum pH value for action of sulfur dioxide (SO₂) resistance of microbe growth, is less than

View solution

Q. Growth of bacteria and fungi is sometimes inhibited by

View solution

Q. Sulfur dioxide (SO₂) is obtained on burning of

View solution

Q. Iron (Fe) metal in the form of steel (mixture of iron and carbon) can even be corroded by

View solution

Q. Oxides of group IV behave as

View solution

Q. The gas which is slightly soluble in water is

View solution

Q. The compounds formed by group IV elements and chlorine are called

View solution