Classify each of the following solids as ionic, metallic, molecular, network or amorphous.
a) `I_2` b) Plastic
c) LiBr d) SiC

Classify the following solids as ionic, metallic, molecular, network (covalent) or amorphous. i) Tetraphosphorus decoxide (P_4O_10) ii) Ammonium phosphate (NH_4PO_4) iii) SiC iV) I_2 vi) Plastic vi) Graphite vii) Brass ix) Rb x)LiBr xi) Si

Classify the following solids as ionic, metallic, molecular, network (covalent) or amorphous. i) Tetraphosphorus decoxide (P_4O_10) ii) Ammonium phosphate ((NH_4)_3PO_4) iii) SiC iv) I_2 V) P_4 vi) Plastic vii) Graphite viii) Brass ix) Rb x) LiBr xi) Si

Which of the following is a molecular solid? a) Diamond b) Graphite c) ice d) Quartz.

Classify each of the following as pure substance or mixture. (a) Ethyl alcohol (b) Oxygen (c) Blood (d) Carbon (e) Steel (f) Distilled water

Classify the following into crystalline and amorphous solids. NaCl ,Graphite , Plastic, Diamond, Rubber, KCI, Wood, CaC0_3 , Iodine .

Find the union of each of the following pairs of sets: A = {a,e,i,o,u} B = {a,b,c}

Classify the following pollutants : (a) Carbon monoxide (CO) (b) Detergents ( c ) Plastic (d) DDT (e) Sewage (f) Cigarette smoke

Name the homone that regulate each of the following. a) Storage of glucose as glycogen. b) Sodium Potassium metabolism. c) Basal Metabolic Rate. d) Urinary elimination of water.

Which of the following alkali metal cation has large size in aqueous solution? (1) L i + (2) N a + (3) K + (4) R b +

What are the oxidation number of the underlined elements in each of the following and how do you rationalise your results? a) Kunderline I_3 b) H_2 underlineS_4 O_6 c) underlineF e_3 O_4 d) underlineCH_3 underlineCH_2 OH