What possible processes might have led to the production of multicellular animals like sponges and Eumetazoa from Protista?

The set having incorrect statement is 1. the Hall-Heroult process is used for the production of aluminum and iron 2. pig iron is obtained from cast iron. 3. the blistered appearance of copper during the metallurgical process is due to the evolution of CO_2 4. leaching of bauxite using concentrated NaOH solution gives sodium aluminate and sodium silicate

SN reaction is given by these compounds, which have a nuclophilic group and a good leaving EWG . It should be stable after leaving with bonding pair of overline(e)'s and it should have high polarisability. Nucliphilic aliphatic substituion reaction is mainly of two types SN^(-1) and SN^(2). SN^(-1) mechanism is a two step process. Reaction velocity of SN^(-1) depends only on the concentration of the subtrate. It proceeds via the formation of carbocation, optically active substrate gives (o+) and (o-) froms of the product. In most of the cases, the product usually consists of 5-20% inverted and (95-80%) racemised species. The more stable is the carbocation, the greater is the propotion of racemission. In solvolysis reaction, the more nucleophillic is the solvent, the greater is the proportion of inversion. Which of the following will give SN reaction?

SN reaction is given by these compounds, which have a nuclophilic group and a good leaving EWG . It should be stable after leaving with bonding pair of overline(e)'s and it should have high polarisability. Nucliphilic aliphatic substituion reaction is mainly of two types SN^(-1) and SN^(2). SN^(-1) mechanism is a two step process. Reaction velocity of SN^(-1) depends only on the concentration of the subtrate. It proceeds via the formation of carbocation, optically active substrate gives (o+) and (o-) froms of the product. In most of the cases, the product usually consists of 5-20% inverted and (95-80%) racemised species. The more stable is the carbocation, the greater is the propotion of racemission. In solvolysis reaction, the more nucleophillic is the solvent, the greater is the proportion of inversion. Which of the following gives SN^(1) reaction?

SN reaction is given by these compounds, which have a nuclophilic group and a good leaving EWG . It should be stable after leaving with bonding pair of overline(e)'s and it should have high polarisability. Nucliphilic aliphatic substituion reaction is mainly of two types SN^(-1) and SN^(2). SN^(-1) mechanism is a two step process. Reaction velocity of SN^(-1) depends only on the concentration of the subtrate. It proceeds via the formation of carbocation, optically active substrate gives (o+) and (o-) froms of the product. In most of the cases, the product usually consists of 5-20% inverted and (95-80%) racemised species. The more stable is the carbocation, the greater is the propotion of racemisation. In solvolysis reaction, the more nucleophillic is the solvent, the greater is the proportion of inversion. For the reaction which substrate will give maximum racemismision ?

SN reaction is given by these compounds, which have a nuclophilic group and a good leaving EWG . It should be stable after leaving with bonding pair of overline(e)'s and it should have high polarisability. Nucliphilic aliphatic substituion reaction is mainly of two types SN^(-1) and SN^(2). SN^(-1) mechanism is a two step process. Reaction velocity of SN^(-1) depends only on the concentration of the subtrate. It proceeds via the formation of carbocation, optically active substrate gives (o+) and (o-) froms of the product. In most of the cases, the product usually consists of 5-20% inverted and (95-80%) racemised species. The more stable is the carbocation, the greater is the propotion of racemission. In solvolysis reaction, the more nucleophillic is the solvent, the greater is the proportion of inversion. Which of the following gives SN^(1) reaction? Select the correct answer.

Fill in the blanks with suitable words : (i) ……… percent of the drugs currently sold in the market worldwide are derived from plants. (ii) Broadly utilitarian argument says that biodiversity plays a major role in……that nature provides. (iii) Amazon forest estimated to product through photosynthesis........percent of the total oxgyen in the earth's atmosphere. (iv) The........... argument for conserving biodiversity relates to what we owe to millions of plants animal and microbe species with whom we share this planet.

What features make sponges different from the other organisms placed in the animal kingdom ?

Name the processes from which chlorine is obtained as a by-product. What will happen if an aqueous solution of NaCl is subjected to electrolysis?

What type of organs eye of an Octopus and that of a human called? Give another example from the animal group and one from the plants of such organs. Name and explain the evolutionery process they exhibit.