In order to give the awareness about healthy practices to reduce respiratory disorders, prepare a pamphlet.

The school science club has decided to conduct a poster propaganda for creating awareness about pollution due to plastics. Prepare some posters for this.

Roasting of sulphides gives the gas X as a by product. This is a colourless gas with choking smell of burnt sulphur and causes great damage to respiratory organs as a result of acid rain. Its aqueous solution is acidic, acts as a reducing agent and its acid has never been isolated. The gas X is

In a classroom discussion about order and moleculrity of a reaction,Ramu argued that ''there are reactions which appear to be of higher order but actually follows first order kinetics''How far is his statement true? Give your opinion in this regard. Justify your answer using suitable example.

Choose the correct statements about diborane I. If is prepared by the oxidation of sodium borohydride with iodine II. It undergoes cleavage reactions with Lewis bases to give borane adducts. III. It is produced on an industrial scale by the reaction of BF_(3) with LiAlH_(4) IV. It is readily hydrolysed by water to give borazine. V. It burns in oxygen and gives boron trioxide.

Based on the following information, arrange four metals A, B, C and D in the order of decreasing ability to act as reducing agents: (I) only A,B and C react with 1 M HCI to give H_(2) (g) (II) When C is addd to solution of the other metal ions, metallic B and D are formed (III) Metal C does not reduce A^(n+) CgtAgtBgtD , CgtAgtDgtB , AgtCgtDgtB , AgtCgtBgtD