NEET 2013 (Karnataka)

Nitrogen detection in an organic compound is carried out by Lassaigne's test. The blue colour formed corresponds to which of the following formulae?

Crystal field splitting energy for high spin d4 octahedral complex is

In a particular isomer of [Co(NH3)4Cl2]o, the Cl\(-\)Co\(-\)Cl angle is 90o, this isomer is known as

Which among the following is a paramagnetic complex?

The anion of acetylacetone (acac) forms Co (acac)3 chelate with Co3+. The rings of the chelate are

The correct IUPAC name for [CrF2(en)2]Cl is

Which is diamagnetic?

Sc (Z = 21) is a transition element but Zn (Z = 30) is not because

Consider the half-cell reduction reaction
Mn2+ + 2e\(-\) \(\to\) Mn, Eo = \(-\)1.18 V
Mn2+ \(\to\) Mn3+ + e\(-\), Eo = \(-\) 1.51 V
The \(E\)o for the reaction 3 Mn2+ \(\to\) Mno + 2Mn3+, and possibility of the forward reaction are ...

How many gram of cobalt metal will be deposited when a solution of cobalt (II) chloride is electrolyzed with a current of 10 amperes for 109 minutes (1 Faraday = 96,500 C; Atomic mass of Co = 59 u)

Which one of the following statements is not true?

What is the density of N2 gas 227oC and 5.00 atm. pressure? (R = 0.082 L atm K\(-\)1 mol\(-\)1)

In the following reaction :

Product 'P' will not give

Accumulation of lactic acid (HC3H5O3), a monobasic acid in tissues leads to pain and a feeling of fatigue. In a 0.10 M aqueous solution, lactic acid is 3.7% dissociates. The value of dissociation constant, Ka, for this acid will be

At 100oC the Kw of water is 55 times its value at 25oC. What will be the pH of neutral solution? (log 55 = 1.74)

The dissociation constant of weak acid is 1 \(\times\) 10\(-\)4. In order to prepare a buffer solution with a pH = 5, the [Salt]/[Acid] ratio should be

The values of Ksp of CaCO3 and CaC2O4 are 4.7 \(\times\) 10\(-\)9 and 1.3 \(\times\) \(-\)9 respectively at 25oC. If the mixture of these two is washed with water, what is the concentration of Ca2+ ions in water ?

On hydrolysis of a ''compound'', two compounds are obtained. One of which one treatment with sodium nitrite and hydrochloric acid gives a product which does not respond to iodoform test. The second one reduces Tollens reagent and Fehling's...

Some reactions of amines are given. Which one is not correct?

Identify the incorrect statement, regarding the molecule XeO4 :

Which statement is wrong?

Which one of the following arrangements represents the correct order of least negative to most negative electron gain enthalpy for C, Ca, Al, F and O?

The metal oxide which cannot be reduced to metal by carbon is

In Castner-Kellner cell for production of sodium hydroxide

Which condition is not satisfied by an ideal solution?

In an experiment it showed that 10 mL of 0.05 M solution of chloride required 10 mL of 0.1 M solution of AgNO3, which of the following will be the formula of the chloriode (X stands for the symbol of the element other than chlorine)

Arrange the following in increasing order of stability

What is the hybridisation state of benzyl carbonium ion?

Given :

I and II are

Homolytic fission of the following alkanes forms free radicals CH3 \(-\) CH3, CH3 \(-\) CH2 \(-\) CH3, (CH3)2CH \(-\) CH3, CH3 \(-\) CH2 \(-\)CH(CH3)2.
Increasing order of stability of the radicals is

Which of the following chemical system is non aromatic ?

According to law of photochemical equivalence the energy absorbed (in ergs/mole) is given as (h = 6.62 \(\times\) 10\(-\)27 ergs, c = 3 \(\times\) 1010 cm s\(-\)1, NA = 6.02 \(\times\) 10\(-\)23 mol\(-\)1)

The outer electronic configuration of Gd (At. No. 64) is

Three thermochemical equations are given below
(i)  C(graphite) + O2(g) \(\to\) CO2(g); \(\Delta\)rHo = x kJ mol\(-\)1
(ii)  C(graphite) + \({1 \over 2}\)O2(g) \(\to\) CO(g); \(\Delta\)rHo = y kJ mol\(-\)1
(iii)  CO(g) + $${1 \over 2...

When 5 litres of a gas mixture of methane and propane is perfectly combusted at 0oC and 1 atmosphere, 16 litres of oxygen at the same temperature and pressure is consumed, The amount of heat released from this combustion in kJ (\(\Delta\)H...

The primary of a transformer when connected to a dc battery of 10 Volt draws a current of 1 mA. The number of turns of the primary and secondary windings are 50 and 100 respectively. The voltage in the secondary and the current drawn by the...

How does the Binding Energy per nucleon vary with the increase in the number of nucleons ?

\(\alpha\)-particles, \(\beta\)-particles and \(\gamma\)-rays are all having same energy. Their penetrating power in a given medium in increasing order will be

An electron in hydrogen atom makes a transition n1 \(\to\) n2 where n1 and n2 are principal quantum numbers of the two states . Assuming Bohr's model to be valid, the time period of the electron in the initial state is eight times that in...

A person holding a rifle (mass of person and rifle together is 100 kg) stands on a smooth surface and fires 10 shots horizontally, in 5 s. Each bullet has a mass of 10 g with a muzzle velocity of 800 m s\(-\)1. The final velocity acquired b...

A 12 cm wire is given a shape of a right angled triangle ABC having sides 3 cm, 4 cm and 5 cm as shown in the figure. The resistance between two ends (AB, BC, CA) of the respective sides are measuread one by one ratio

Ten identical cells connected in series are needed to heat a wire of length one meter and radius 'r' by 10oC in time 't'. How many cells will be required to heat the wire of length two meter of the same radius by the same temperature in tim...

Two rods are joined end to end, as shown. Both have a cross-sectional area of 0.01 cm2. Each is 1 meter long. One rod is of copper with a resistivity of 1.7 \(\times\) 10\(-\)6 ohm-centimeter, the other is of iron with a resistivity of 10...

A source of light is placed at a distance of 50 cm from a photo cell and the stopping potential is found to be V0. If the distance between the light source and photo cell is made 25 cm, the new stopping potential will be :

The de-broglie wavelength of neutrons in thermal equilibrium at temperature T is

A current of 2.5 A flows through a coil of inductance 5 H. The magnetic flux linked with the coil is

An electromagnetic wave of frequency \(\upsilon = 3.0\) MHz passes from vaccum into a dielectric medium with relative permittivity \({{\varepsilon _r}}\) = 4.0. Then

A charge q is placed at the centre of the line joining two equal charges Q. The system of the three charges will be in equilibrium if q is equal to

An electric dipole of dipole moment p is aligned parallel to a uniform electric field E. The energy required to rotate the dipole by 90o is

Two plane mirrors are inclined at 70o. A ray incident on one mirror at angle, \(\theta\) after reflection falls on second mirror and is reflected from there parallel to first mirror. The value of \(\theta\) is