Give reasons: (a) Cooking is faster in a pressure cooker than in an open pan. (b) On mixing liquid X and liquid Y, volume of the resulting solution decreases. What type of deviation from Raoult's law is shown by the resulting solution? © What change in temperature would you observe after mixing liquids X and Y?
Define Azeotrope. What type of Azeotrope is formed by negative deviation from Raoult's law? Give an example.
Would you expect benzaldehyde to be more reactive or less reactive in nucleophilic addition reactions than propanal? Justify your answer.
Identify A and B in each of the following reaction sequence: (a) \[ CH_3CH_2Cl \xrightarrow{NaCN} A \xrightarrow{H_2/Ni} B \]
(b) \[ C_6H_5NH_2 \xrightarrow{NaNO_2/HCl} A \xrightarrow{C_6H_5NH_2} B \]
Write the reactions involved when D-glucose is treated with the following reagents: (a) HCN (b) Br\(_2\) water
State the following: Kohlrausch law of independent migration of ions
The elements of the 3d transition series are given as: Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn. Answer the following:
Copper has an exceptionally positive \( E^\circ_{\text{M}^{2+}/\text{M}} \) value, why?
Which element is a strong reducing agent in +2 oxidation state and why?
Zn\(^{2+}\) salts are colourless. Why?
Draw the structure of the major monohalo product for each of the following reactions:
Propene to 1-Iodopropane
2-Bromobutane to but-2-ene
Arrange the following compounds in increasing order of their boiling point: \[ \text{(CH}_3\text{)}_2\text{NH, CH}_3\text{CH}_2\text{NH}_2, \text{CH}_3\text{CH}_2\text{OH} \]
Amides are less basic than amines.
What is the difference between native protein and denatured protein?
Which one of the following is a disaccharide? \[ \text{Glucose, Lactose, Amylose, Fructose} \]
What is a rate determining step?
Convert Ethanal to But-2-enal
An alkene A with molecular formula C\(_6\)H\(_{10}\) on ozonolysis gives a mixture of two compounds B and C. Compound B gives a positive Fehling's test and also reacts with iodine and NaOH solution. Compound C does not give Fehling's test but forms iodoform. Identify the compounds A, B, and C.
