Which of the following reagent(s) is required for the conversion of Benzene to methyl benzoate?
(A) \(Br 2 / FeBr 3\)
(B) Mg, dry Ether
(C) \(CO 2, H3O+\)
(D) Methanol, Conc. H2SO4
Choose the correct answer from the options given below :

The number of moles of potassium dichromate needed to oxidize 3 moles of ferrous ions in acidic medium will be ___________

In a reaction :
\(MnO _4^{-}+8 H ^{+}+5 e^{-} \rightarrow \underline{ A }+ H _2 O\)
A stands for :

Read the passage carefully and answer the questions
Carbohydrates are naturally formed organic compounds from various plants. The common chemical formula, \(C _x\left( H _2 O \right)_y\), was considered as hydrates of carbon to derive the various carbohydrates. For instance, the general formula for glucose ( \(C _6 H _{12} O _6\) ) easily fits into the above formula. Carbohydrates also called saccharides are classified on the basis of their behavior towards hydrolysis. Monosaccharides cannot be hydrolyzed further to simpler units of polyhydroxy aldehyde or ketones. About 20 monosaccharides are known to occur in nature. Carbohydrates that yield large number of monosaccharide units are called polysaccharides. Amino acids contain ( \(- NH _2\) ) and ( - COOH ), which can be classified in various forms. Proteins are polymers of alpha amino acids which are connected to each other by a peptide bond or peptide linkage. When a native protein is subjected to physical change, its globules unfold and helix get uncoiled and the protein loses its biological activity. The protein is said to be denaturated.
The two monosaccharides units are joined together through which linkage ?

What is the formula of following coordination compound: Potassium trioxalatoaluminate(III)

The edge lengths of the unit cells in terms of the radius of spheres constituting fcc, bcc \& simple cubic unit cell respectively are:

Read the passage carefully and answer the questions based on the passage:
The number of reacting species (atoms, ions or molecules) taking part in an elementary reaction, which must collide simultaneously in order to bring about a chemical reaction is called molecularity of a reaction. In the rate equation Rate \(=k[\mathrm{~A}]^x[\mathrm{~B}]^y\)
\(x\) and \(y\) indicate how sensitive the rate is to the change in concentration of A and B, respectively. Sum of these exponents, i.e., \(x +y\) gives the overall order of a reaction where \(x\) and \(y\) represent the order with respect to the reactants A and B respectively. Hence, the sum of powers of the concentration of the reactants in the rate law expression is called the order of that chemical reaction. For a first order reaction, the concentration of the reactant varies as \([\mathrm{R}]=[\mathrm{R}]_0 e^{-k t}\)
Which of the following statements is not true for order of a reaction?

Hybridization of carbon atoms attached with halogens in haloalkanes \\& haloarenes are

The ability of some snails and fish to avoid summer related problems like heat and dessication is called

Siyaram has 100 Kg apples, he sells a part of it at \(8\%\) profit and rest of it at \(18\%\) profit. The overall profit he earns is \(14\%\). The quantity he sold at \(18\%\) profit is :

Two point charges + 200 \( \mu \)C are placed at a distance of 2 mm from each other in a uniform electric field of \( 10^5 \text{ N/C} \), such that the line joining the negative to positive charge makes an angle 30° with the field. The torque acting on the system is:

A bag contains 4 red and 6 black balls. Two balls are drawn in succession without replacement. The probability that the first is red and the second is black is

The area of the region bounded by the curves \(y=x^2+2\) and the \(x\)-axis, between \(x=0\) and \(x=3\) in the first quadrant is :