\(Mn_2O_7\), \(CrO\) and \(V_2O_5\) respectively are:

The reaction for the conversion of phenol into salicylic acid is known as

Glucose does not react with:

A solution of CuSO _4 is electrolysed for 10 minutes using a current of amperes. ( 1 mol of \(Cu =63 g\) ). How much copper is deposited at cathode
\(1 F=96487 C mol^{-1}\)

The increasing order of osmotic pressure of 0.1 M aqueous solution of the following is:
(A) \(MgCl _2\)
(B) NaCl
(C) \(NH _2 CONH _2\)
(D) \(K _3\left[ Fe ( CN )_6\right]\)
Choose the correct answer from the options given below:

The chemical formula of mineral beryl is

Answer the question on basis of passage given below :
Molecular nitrogen is very little reactive chemically. During lightning discharge, atmospheric nitrogen and oxygen combines to form nitric oxide which also combines with oxygen to form nitrogen dioxide. Both NO and \(NO _2\) constitute smog which is very poisonous. It can cause burning sensation in the eyes and adversely affect respiratory system.
Oxidation state of nitrogen in nitric oxide and nitrogen dioxide respectively is :

Match List-l with List-ll

List-l (Techniques)	List-II (Features)
(A) Bioprocess engineering	(I) Use of bio resources without proper authorisation
(B) Somatic hybridisation	(II) Correction of gene defect
(C) Gene therapy	(III) Fusion of protoplasts from two different organisms
(D) Biopiracy	(IV) Maintenance of sterile ambiance for microbial growth

Choose the correct answer from the options given below:

The different methods of producing plane polarised light are
(A) Reflection
(B) Scattering
(C) Double Refraction
(D) Selective absorption
Choose the correct answer from the options given below:

When a p-n junction is forward biased, the width of depletion region

The magnetic flux \(\Phi\), linked with a coil of resistance 5 \(\Omega\) varies with time as \(\Phi = (5t^2 - 4t + 1)\text{Wb}\). The current induced in the coil at 0.2 s is :

There are two kinds of nucleases - exonucleases and endonucleases. Exonucleases remove nucleotides from the ends of the DNA whereas, endonucleases make cuts at specific positions within the DNA. The cutting of DNA by restriction endonucleases results in the fragments of DNA. These fragments can be separated by a technique known as gel electrophoresis. Since DNA fragments are negatively charged molecules they can be separated by forcing them to move towards the anode under an electric field through a medium/matrix. Small volume cultures cannot yield appreciable quantities of products. To produce in large quantities, the development of bioreactors, where large volumes (100 - 1000 litres) of culture can be processed, was required. Thus, bioreactors can be thought of as vessels in which raw materials are biologically converted into specific products, individual enzymes, etc., using microbial plant, animal or human cells. PCR stands for Polymerase Chain Reaction. In this reaction, multiple copies of the gene (or DNA) of interest are synthesised in vitro using two sets of primers (small chemically synthesised oligonucleotides that are complementary to the regions of DNA) and the enzyme DNA polymerase.
Which one of the following statements is correct about DNA separation and isolation?

Identify the correct statement: