Answer the questions on the basis of passage given below :
As aldehydes ketones possess the carbonyl functional group, they show similar reaction They exhibit nucleophilic addition reactions, reduction, oxidations, reactions due to alpha-Hydrogen atom, and many other reactions, like Cannizzaro reaction to electrophilic substitution reactions (in case of aromatic aldehydes ketones).
These reactions help in the preparation of a number of important compounds, like acetic acid, vinyl acetate, polymers and in perfume and dye industries.
Nucleophilic addition reactions form cyanohydrins, acetals, alcohols and
N-substituted derivatives like imine, oxime, semicarbazone, phenylhydrazone Schiff's base. Reactions due to alpha-hydrogen atoms help in formation of aldols and alpha, beta-unsaturated aldehydes ketones.
Identify the final product of the following reaction :

In which of the following cases is there a change in oxidation number?

A compound is formed by two elements P and Q. The element Q forms ccp and atoms P occupy \(1/3^{rd}\) of tetrahedral voids. What is the formula of the compound ?

Replacement of Cl of \(C _6 H _5 Cl\) to give \(C _6 H _5 OH\) occurs only in drastic conditions, but Cl of 2,4-dinitrochlorobenzene is readily replaced. This is because:

45 g of ethylene glycol (C₂H₆O₂) is mixed with 600 g of water. Calculate the depression in freezing point.
(K_f for water = 1.86 K kg mol^-1)

Read the passage carefully and answer the questions
Carbohydrates such as cane sugar, glucose, starch etc. belong to a class of naturally occurring organic compounds. Structurally these are polyhydroxy aldehydes or ketones or the compounds which produce such units on hydrolysis. Carbohydrates which are sweet in taste are called sugars. Theses sugars can be reducing or non-reducing. Monosaccharides cannot be hydrolyzed to simpler units whereas Oligosaccharides yield two to ten monosaccharide units on hydrolysis. Polysaccharides yield large number of monosaccharide units on hydrolysis. This class of biomolecules is essential for living systems as they serve as storage molecules in plants and animals. In addition, they provide raw materials for important industries like furniture, textiles, paper, lacquers and breweries. Two aldopentose form important constituents of nucleic acids. Carbohydrates are also called saccharides (Greek: sakcharon which means sugar). Sugar which is used in household and in milk also comes under this class of biomolecules.
Reducing sugars respond to

The number of unpaired electrons in gaseous ions \(Mn ^{3+}, V ^{3+}, Cr ^{3+}\) are respectively:

The matrix \(A=\left[\begin{array}{lll}0 & 0 & 3 \\ 0 & 3 & 0 \\ 3 & 0 & 0\end{array}\right]\) is a

Match the complexes given in List-I with their properties given in List-II

List-I (Complex)	List-II (Property)
(A) \(\left[{FeF}_6\right]^{3-}\)	(I) \(d^6\), high spin
(B) \(\left[{CoF}_6\right]^{3-}\)	(II) \(d^5\), high spin
(C) \(\left[{Mn}({CN})_6\right]^{3-}\)	(III) \(d^6\), low spin
(D) \(\left[{Co}({CN})_6\right]^{3-}\)	(IV) \(d^4\), low spin

Choose the correct answer from the options given below:

Light of wavelength 300 nm is used in an experiment on photoelectric effect with lithium having a work function of 2.7 eV. The maximum kinetic energy of ejected photo-electrons will be

The region represented by the system of inequalities \(x, y \geq 0, y \leq 6, x+y \leq 3\)

The system of equations:
\(x+y+z=5\)
\(x+2 y+3 z=9\)
\(x+3 y+\lambda z=\mu\) has a unique solution, if

A Convex lens having a power of one dioptre is made of glass having refractive index 1.48. What will be the power of convex lens made of material with refractive index 1.6 and same dimension