Environmental chemistry, Chemistry

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Environmental pollution: Soil, water and air pollution

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What is the packet of energy called, What is the packet of energy called: ...

What is the packet of energy called: (1) Electron          (2) Photon    (3) Positron                 (4)Proton Ans:  Photon

Correct statement is, Correct statement is: (1) K=4s 1 , Cr= 3d 4 4s 2...

Correct statement is: (1) K=4s 1 , Cr= 3d 4 4s 2 , Cu= 3d 10 4s 2           (2)  K=4s 2, Cr= 3d 4 4s 2 , Cu= 3d 10 4s 2        (3) K=4s 2 Cr= 3d 5 4s 1 , Cu= 3d 10

Name the principal ore of tin or lead, Name the principal ore of tin or lea...

Name the principal ore of tin or lead. Describe the different steps (along with equationsfor the reactions) involved in the extraction of the metal from the ore named. Name

Give examples of steric effects, Give Examples of steric effects These ...

Give Examples of steric effects These are both examples of steric effects. Placing three highly branched groups around a central boron results in van der Waals repulsions. Thes

Advantages of icp-aes method, Advantages of ICP-AES method: The wide a...

Advantages of ICP-AES method: The wide applicability of ICP-AES in the quantitative analysis of various materials can be attributed to the following advantages. Rapid a

Important synthetic rubbers: terylene, Terylene: Preparation:  teryle...

Terylene: Preparation:  terylene is prepared by a polyconensation reaction between a dicarboxylic acid and a idol. Properties: a fully aliphatic polyester are not of muc

Vulcanization, write short note on vulcanization?

write short note on vulcanization?

2 p orbitals have, 2p orbitals have : (1) n=1, l=2                     ...

2p orbitals have : (1) n=1, l=2                         (2) n=1, l=0          (3) n=2 l=1                          (4)n=2, l=0 Ans: n=2 l=1

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