A non-metal A is an important consituent of our food and forms two oxides B and C. Oxide B is toxic where as C causes global warming.
To which group of Periodic table does A belong?

A non-metal A is an important consituent of our food and forms two oxides B and C. Oxide B is toxic where as C causes global warming. Identify A,B and C?

Name a metal which can melt even in your hand. To which group of the periodic table does it belong?

A non-metal A which is the largest consituent of air, when heated with H_2 in 1:3 ratio in the presence of catalyst gives a gas B. on heating with O_2 it gives an oxide C. If this oxide is passed into water in the presence of air it gives an acid D which acts as a strong oxidising agent. To which group of periodic table does this non-metal belong?

A non-metal A which is the largest consituent of air, when heated with H_2 in 1:3 ratio in the presence of catalyst gives a gas B. on heating with O_2 it gives an oxide C. If this oxide is passed into water in the presence of air it gives an acid D which acts as a strong oxidising agent. Identify A,B,C and D.

The position of three elements A, B and C in the periodic table are as shown below: Which type ion, cation or anion, will be formed by elements A ?

The position of three elements A, B and C in the periodic table are as shown below: State whether a is a metal or non-metal

A part of Ellingham diagram for some metal oxides (based upon 1 mole of O_2 ) and carbon is shown. In figure A, B, C and D represent curves for metal oxides and a, b, c, d, e and f are temperatures. Answer the following : Will B oxide reduce metal oxide of A or C or both ?

A dietician wishes to mix together two kinds of food X and Y in such a way that the mixture contains exist 10 units of vitamin A, 12 units of vitamin B and 8 units of vitamin C. The vitamin contents of one kg food is given below: One kg of food X costs Rs.16 and one kg of food Y costs Rs.20. Find the least cost of mixture which will produce the required diet?