Given below are reduction potentials :
(A) \(E _{ Cu ^{2+} / Cu }^0=0.34 V\)
(B) \(E _{ Sn ^{2+} / Sn }^0=-0.14 V\)
(C) \(E _{ Zn ^{2+} / Zn }^0=-0.76 V\)
(D) \(E _{ K ^{+} / K }^0=-2.93 V\)
The strongest reducing agent from the above is :

Read the passage carefully and answer the Questions In the formation of coordination complexes, if the inner \(d\) orbital \((n-1) d\) is used in hybridisation, the complex, is called an inner orbital or low spin or spin paired complex. And if it uses outer \(d\) orbital ( \(n d\) ) in hybridisation (like \(s p^3 d^2\) ), it is called outer orbital or high spin or spin free complex. The degeneracy of the \(d\) orbitals has been removed due to ligand electron-metal electron repulsions in the complex. This splitting of the degenerate levels due to the presence of ligands in a definite geometry is termed as crystal field splitting. For coordination complexes, the magnetic moment is determined by the number of unpaired electrons and is calculated by using the 'spin-only' formula, \(\mu=\sqrt{n(n+2)}\) where \(n\) is the number of unpaired electrons and \(\mu\) is the magnetic moment in units of Bohr magneton (BM). The coordination compounds are of great importance. These compounds are widely present in the mineral, plant and animal worlds and are known to play many important functions in the area of analytical chemistry, metallurgy, biological systems, industry and medicine.
\(\left[ Co \left( NH _3\right)_6\right]^{3+}\) and \(\left[ Ni \left( NH _3\right)_6\right]^{2+}\) respectively are

Which of the following relationships are not correct?
(A) \(E_{\text {cell }}^{\circ}=\frac{0.0591}{n F} \log K_c\)
(B) \(\quad \Lambda_m^{\circ}\left( Na _2 SO _4\right)=\Lambda_m^{\circ}\left( Na ^{+}\right)+\Lambda_m^{\circ}\left( SO _4^{2-}\right)\)
(C) Cell constant \(=\frac{\text { Conductivity }}{\text { Conductance }}\)
(D) \(\Delta G^{\circ}=n F E_{\text {cell }}^{\circ}\)
(E) \(Zn ( s )\left| Zn ^{2+}( aq ) \| Cu ^{2+}( aq )\right| Cu\)
Choose the correct answer from the options given below:

Read the passage given below and answer the question.
Phenols and Alcohol have the same function group (-OH) but phenols are stronger acids than alcohol due the resonance stabilization of phenoxide ion than alkoxide ion (-RO\(^{-}\)). Electron withdrawing groups tend to increase the acidic strength while electron releasing groups tend to decrease it.
Compound 'A' on reaction with Conc. HCl and anhydrous \(ZnCl_2\), gives turbidity immediately.
Compound 'A' is :

Match List - I with List - II.

List - I	List - II
A. Simple and face centred cubic	I. \(\text{a} = \text{b} = \text{c}\)
B. Cubic and rhombohedral	II. \(\alpha = \beta = \gamma = 90°\)
C. Cubic and tetragonal	III. have only two crystallographic angle of \(90°\)
D. Hexagonal and monoclinic	IV. belong to the same crystalline system

Choose the correct answer from the options given below :

Read the passage carefully and answer the Questions
A homogeneous mixture of two or more than two components has uniform composition and properties. The binary solutions have two components, which may be solid, liquid or gas. The resultant solution has a larger amount of solvent and a smaller amount of solute. The amount of solute in a given amount of solvent decides the concentration of the resulting solution. The concentration can be expressed in various ways, like molarity, molality, normality and mole fraction.
Glucose dissolved in water and ethanol dissolved in water are examples of:

Question: The transition metal ion which is not coloured is:

Which one of the following has the lowest melting point ?

Given below are some statements which should be followed to avoid sexually transmitted infections.
Which of the following are correct?
(A) Avoid sex with unknown partners/multiple partners.
(B) Always use medicated IUDs during coitus.
(C) In case of doubt always consult a qualified doctor and get complete treatment if diagnosed infection.
(D) Adopt natural methods of contraception during coitus.
(E) Use of oral pills before coitus.
Choose the correct answer from the options given below:

Three cells grouped together at the micropylar end and constitute ___________ in the embryo sac.

Which of the following statements are correct?
(A) Solutions of acids, bases and salts are the examples of electrolytic conductors.
(B) Solutions of cane sugar, glycerin, alcohol are examples of non-electrolytes.
(C) Oxidation takes place at cathode while reduction takes place at anode in an electrolytic cell.
(D) Silicon and germanium are used in semiconductor devices.
Choose the correct answers from the options given below

Read the passage and answer the question : There are thousands of varieties of rice in India alone. The diversity of rice in India is one of the richest in the world. Basmati rice is distinct for its unique aroma and flavour and 27 documented varieties of Basmati are grown in India. There is reference to Basmati in ancient texts, folklore and poetry, as it has been grown for centuries. Several attempts have also been made to patent uses, products and processes based on Indian traditional herbal medicine, e.g. turmeric, neem. There has been growing realisation of the injustice, inadequate compensation and benefit sharing between developed and developing countries. The Indian Parliament has recently cleared a Bill that takes such issues into consideration, including patent terms emergency provisions and research and development initiative.
Identify the statements explaining biopracy
(A) Unauthorised exploitation of bio-resoures of a country
(B) Adequate compensation is given to one country from where bioresource is taken
(C) Exploitation of traditional knowledge to develop modern applications
(D) Equal benefit sharing between developed and developing nations
Choose the correct answer from the options given below:

Oral contraceptive pills used by the females for birth control are combinations of the following hormones :