NEET 2006 Question Paper with Solutions

A black body at \(1227^\circ C\) emits radiations with maximum intensity at a wavelength of 5000 \(\text{\AA}\). If the temperature of the body is increased by \(1000^\circ C\), the maximum intensity will be observed at

Two vibrating tuning forks produce waves given by \(y_1=4\sin500\pi t\) and \(y_2=2\sin506\pi t\). Number of beats produced per minute is

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?

The potential energy of a long spring when stretched by 2 cm is U. If the spring is stretched by 8 cm the potential energy stored in it is

300 J of work is done in sliding a 2 kg block up an inclined plane of height 10 m. Work done against friction is (Take g = 10 \(\text{m/s}^2\))

The IUPAC name of is

For the reaction: \(CH_4(g)+2O_2(g)\rightleftharpoons CO_2(g)+2H_2O(l)\), \(\Delta H_r=-170.8\ \text{kJ mol}^{-1}\). Which of the following statements is not true?

The electronegativity difference between N and F is greater than that between N and H yet the dipole moment of \(NH_3\) (1.5D) is larger than that of \(NF_3\) (0.2 D). This is because

The enthalpy and entropy change for the reaction: \(Br_2(l)+Cl_2(g)\rightarrow 2BrCl(g)\) are \(30\ \text{kJ mol}^{-1}\) and \(105\ \text{J K}^{-1}\ \text{mol}^{-1}\) respectively. The temperature at which the reaction will be in equilibrium is

Which of the following is not isostructural with \(SiCl_4\)?

In a discharge tube ionization of enclosed gas is produced due to collisions between

Two circular coils 1 and 2 are made from the same wire but the radius of the 1st coil is twice that of the 2nd coil. What is the ratio of potential difference in volts should be applied across them so that the magnetic field at their centres is the same?

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

Which one of the following represents forward bias diode?

A photocell employs photoelectric effect to convert

Consider the reaction: \(N_2(g)+3H_2(g)\rightleftharpoons 2NH_3(g)\). The equality relationship between \(\frac{d[NH_3]}{dt}\) and \(-\frac{d[H_2]}{dt}\) is

Which of the following is more basic than aniline?

More number of oxidation states are exhibited by the actinoids than by the lanthanoids. The main reason for this is

\([Co(NH_3)_4(NO_2)_2]Cl\) exhibits

The major organic product in the reaction \(CH_3-O-CH(CH_3)_2+HI\rightarrow\) products is