List of top Questions asked in NEET (UG)- 2006

The enthalpy and entropy change for the reaction : Br₂(l) + Cl₂(g) → 2BrCl(g) are 30 kJ mol^-1 and 105 JK^-1 mol^-1 respectively. The temperature at which the reaction will be in equilibrium is :

A hypothetical electrochemical cell is shown below 
\(A|A+ (xM)|| B+ (yM)| B \)
The emf measured is +0.20 V. The cell reaction is:

If E°_Fe²⁺/Fe = -0.441 V and E°_{Fe³⁺/Fe²⁺} = 0.771 V, the standard emf of the reaction: Fe + 2Fe³⁺ \(→\) 3Fe²⁺ will be:

Self condensation of two moles of ethyl acetate in presence of sodium ethoxide yields:

A carbonyl compound reacts with hydrogen cyanide to form cyanohydrin which on hydrolysis forms a racemic mixture of α-hydroxy acid. The carbonyl compound is:

Nucleophilic addition reaction will be most favoured in:

A plot of \(log\ \frac {x}{m}\) versus \(log \ p\) for the adsorption of a gas on a solid gives a straight line with slope equal to:

The major organic product in the reaction, CH₃ – O – CH(CH₃)₂ + HI \(→\) Product is:

In which of the following molecules are all the bonds not equal?

[Cr(H₂O)₆]Cl₃ (at. no. of Cr = 24) has a magnetic moment of 3.83 BM, the correct distribution of 3d electrons in the chromium of the complex is:

The general molecular formula, which represents the homologous series of alkanols is :

The enthalpy of combustion of H₂, cyclohexene (C₆H₁₀) and cyclohexene (C₆H₁₂) are -241, -3800 and -3920 kJ per mol respectively. Heat of hydrogenation of cyclohexene is:

More number of oxidation states are exhibited by the actinides than by the lanthanides. The main reason for this is:

Assume each reaction is carried out in an open container. For which reaction will ∆H = ∆E?

Which of the following pairs constitutes a buffer?

Two coils of self inductance 2 mH and 8 mH are placed so close together that the effective flux in one coil is completely linked with the other. The mutual inductance between these coils is

Praying mantis is a good example of -

Annual migration does not occur in the case of

A Carnot engine whose sink is at 300 K has an efficiency of 40%. By how much should the temperature of source be increased so as to increase its efficiency by 50% of original efficiency?

Angiotensinogen is a protein produced and secreted by-

Test cross involves-

Evolutionary history of an organism is known as-

A steroid hormone which regulates glucose metabolism is -

For the reaction $CH_{4}(g)+2O_2(g) {<=>}CO_2(g)+2H_2O(\ell) \Delta H_{r} =-170.8\,KJ\,mol^{-1}$ Which of the following statements is not true:

A person walked up a stalled escalator in $90\, s$ . When standing on the same escalator, now moving, he is carried up in $60\, s$. How much time would it take him to walk up the moving escalator?