NEET 2016 Phase 1

The addition of a catalyst during a chemical reaction alters which of the following quantities?

Which of the following is an analgesic?

Which of the following has longest C\(-\)O bond length? (Free C\(-\)O bond length in CO is 1.128 \(\mathop A\limits^o\).)

The electronic configuration of Eu (Atomic No. 63), Gd (Atomic No. 64) and Tb (Atomic No.65) are

Which one of the following statements is correct when SO2 is passed through acidified K2Cr2O7 solution?

The pressure of H2 required to make the potential of H2-electrode zero in pure water at 298 K is

Equal moles of hydrogen and oxygen gases are placed in a container with a pin-hole through which both can escape. What fraction of the oxygen escapes in the time required for onehalf of the hydrogen to escape?

Which of the following biphenyls is optically active ?

In the reaction

X and Y are

The pair of electrons in the given carbanion, CH3C \(\equiv\) C\(-\), is present in which of the following orbitals?

For the following reactions :
(A)  CH3CH2CH2Br + KOH \(\to\)
                 CH3CH \(=\) CH2 + KBr + H2O

Which of the following statements is correct?

Consider the nitration of benzene using mixed conc.H2SO4 and HNO3. If a large amount of KHSO4 is added to the mixture, the rate of nitration will be

Which of the following statements about hydrogen is incorrect?

MY and NY3, two nearly insoluble salts, have the same Ksp values of 6.2 \(\times\) 10\(-\)13 at room temperature. Which statement would be true in regard to MY and NY3?

The product formed by the reaction of an aldehyde with a primary amine is

The correct statement regarding the basicity of arylamines is

Among the following the correct order of acidity is

Which is the correct statement for the given acids?

Which one of the following orders is correct for the bond dissociation enthalpy of halogen molecules?

Match the compounds given in column I with the hybridisation and shape given in column II and mark the correct option

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When copper is heated with conc. HNO3 it produces

In which of the following options the order of arrangement does not agree with the variation of property indicated against it ?

Natural rubber has

Match items of Column I with the items of Column II and assign the correct code :

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The product obtained as a result of a reaction of nitrogen with CaC2 is

Which of the following statments is false?

The ionic radii of A+ and B\(-\) ions are 0.98 \(\times\) 10\(-\)10 m and 1.81 \(\times\) 10\(-\)10 m. The coordination number of each ion in AB is

Lithium has a bcc structure. Its density is 530 kg m\(-\)3 and its atomic mass is 6.94 g mol\(-\). Calculate the edge length of a unit cell of lithium metal. (NA = 6.02 \(\times\) 1023 mol\(-\)1)

Which of the following statements about the composition of the vapour over an ideal 1 : 1 molar mixture of benzene and toluene is correct? Assume that the temperature is constant at 25oC. (Given, vapour pressure data at 25oC, benzene = 12.8...

At 100oC the vapour pressure of a solution of 6.5 g of a solute in 100 g water is 732 mm. If Kb = 0.52, the boiling point of this solution will be

The correct statement regarding the comparison of staggered and eclipsed conformations of ethane, is

Two electrons occupying the same orbital are distinguished by

Fog is a colloidal solution of

Which one of the following characteristics is associated with adsorption?

The correct thermodynamic conditions for the spontaneous reaction at all temperatures is

A small signal voltage V(t) = V0 sin\(\omega\)t is applied across an ideal capacitor C

An inductor 20 mH, a capacitor 50 \(\mu F\) and a resistor 40 \(\Omega\) are connected in series across a source of emf V = 10 sin 340t. The power loss in A.C. circuit is

Given the value of Rydberg constant is 107 m\(-\)1, the wave number of the last line of the Balmer series in hydrogen spectrum will be

When an \(\alpha\)-particle of mass m moving with velocity v bombards on a heavy nucleus of charge Ze, its distance of closest approach from the nucleus depends on m as

A capacitor of 2 \(\mu\)F is charged as shown in the diagram. When the switch S is turned to position 2, the percentage of its stored energy dissipated is

The charge flowing through a resistance R varies with time t is Q = at \(-\) bt2, where \(a\) and \(b\) are positive constants. The total heat produced in R is

A potentiometer wire is 100 cm long and a constant potential difference is maintained across it. Two cells are connected in series first to support one another and then in opposite direction. The balance points are obtained at 50 cm and 10 ...

An electron of mass m and a photon have same energy E. The ratio of de-Broglie wavelengths associated with them is

When a metallic surface is illuminated with radiation of wavelength \(\lambda\), the stopping potential is V. If the same surface is illuminated with radiation of wavelength 2 \(\lambda\), the stopping potential is \({V \over 4}\). The th...

A long solenoid has 1000 turns. When a current of 4 A flows through it, the magnetic flux linked with each turn of the solenoid is 4 \(\times \,{10^{ - 3}}\) Wb. The self-inductance of the solenoid is

Out of the following options which one can be used to produce a propagating electromagnetic wave ?

Two identical charged spheres suspended from a common point by two massless strings of lengths \(l\), are initially at a distance d(d < < \(l\)) apart because of their mutual repulsion. The charges begin to leak from both the spheres at ...

Match the corresponding entries of column 1 with column 2. [Where m is the magnification produced by the mirror]

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The angle of incidence for a ray of light at a refracting surface of a prism is 45o. The angle of prism is 60o. If the ray suffers minimum deviation through the prism, the angle of minimum deviation and refractive index of the material of ...

A astronomical telescope has objective and eyepiece of focal lengths 40 cm and 4 cm respectively. To view an object 200 cm away from the objective, the lenses must be separated by a distance