Question
Write the chemical equation for the following conversion (not more than 2 steps):
Ethyl benzene to benzene.

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Write the structures of compounds A, B and C in the following reactions:
  1. $\text{CH}_3-\text{COOH}\xrightarrow{\text{ }\text{ }\text{ }\text{NH}_3/\triangle\text{ }\text{ }\text{ }}\text{A}\xrightarrow{\text{ }\text{ }\text{ }\text{Br}_2/\text{KOH(aq)}\text{ }\text{ }\text{ }}\text{B}\xrightarrow{\text{ }\text{ }\text{ }\text{CHCL}_3+\text{alc.KOH}\text{ }\text{ }\text{ }}\text{C}$
  1. $\text{C}_6\text{H}_5\text{N}_2^+\text{BF}_4^-\xrightarrow[\triangle]{\text{NaNO}_2/\text{Cu}\text{ }\text{ }}\text{A}\xrightarrow{\text{ }\text{ }\text{ }\text{Fe}/\text{HCL}\text{ }\text{ }\text{ }}\text{B}\xrightarrow{\text{ }\text{ }\text{ }\text{CH}_3\text{COCL}/pyridine\text{ }\text{ }\text{ }}\text{C}$
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Which aqueous solution has higher concentration-1 molar or 1 molal solution of the same solute? Give reason.
Calculate the charge of one mole of electrons.
What is spectrochemical series? Explain the difference between a weak field ligand and a strong field ligand.
Answer the following questions:
In the following pairs of halogen compounds, which would undergo SN1 reaction faster? Explain.

A solution containing 30 g of non-volatile solute exactly in 90 g of water has a vapour pressure of 2.8 kPa at 298 K. Further, 18 g of water is then added to the solution and the new vapour pressure becomes 2.9 kPa at 298 K. Calculate:
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  2. Vapour pressure of water at 298 K.
An aqueous solution of 2% non-volatile solute exerts a pressure of 1.004 bar at the normal boiling point of the solvent. What is the molar mass of the solute?
Explain the nucleophilic substitution reaction of aldehydes and ketones with Grignard reagent (R'-Mg-X) with chemical equations ### Write only chemical reactions to obtain 1º, 2º and 3º alcohols from aldehyde andketone compounds.
Shanti, a domestic helper of Mrs. Anuradha, fainted while mopping the floor. Mrs. Anuradha immediately took her to the nearby hospital where she was diagnosed to be severely ‘anaemic’, The doctor prescribed an iron rich diet and multivitamins supplement to her. Mrs. Anuradha supported her financially to get the medicines. After a month, Shanti was diagnosed to be normal.
After reading the above passage, answer the following questions:
  1. What values are displayed by Mrs. Anuradha?
  2. Name the vitamin whose deficiency causes ‘pernicious anaemia’.
  3. Give an example of a water soluble vitamin.