NEET 2015

173 Questions • 180 Minutes • 2015

Take This Paper Online

All Questions — Click to View Solution

Water rises to height 'h' in capillary tube. If the length of capillary tube above the surface of water is made less than 'h', then

View Answer & Solution

In an astronomical telescope in normal adjustment a straight black line of length L is drawn on inside part of objective lens. The eye-piece forms a real image of this line. The length of this image is I. The magnification of the telescope is :

View Answer & Solution

The value of coefficient of volume expansion of glycerin is $5 \times 10^{-4}$ $K^{-1}$. The fractional change in the density of glycerin for a rise of 40°C in its temperature, is :

View Answer & Solution

A photoelectric surface is illuminated successively by monochromatic light of wavelength λ and $\frac{\lambda}{2}$. If the maximum kinetic energy of the emitted photoelectrons in the second case is 3 times that in the first case, the work function of the surface of the material is : (h = Plank's constant, c = speed of light)

View Answer & Solution

2,3-Dimethyl-2-butene can be prepared by heating which of the following compounds with a strong acid ?

View Answer & Solution

Gadolinium belongs to 4f series. It's atomic number is 64. Which of the following is the correct electronic configuration of gadolinium ?

View Answer & Solution

The formation of the oxide ion, $O^{2-}(g)$, from oxygen atom requires first an exothermic and then an endothermic step as shown below : $O(g) + e^- \rightarrow O^-(g)$ ; $\Delta_fH^\circ$ = -141 kJ $mol^{-1}$ $O^-(g) + e^- \rightarrow O^{2-}(g)$ ; $\Delta_fH^\circ$ = +780 kJ $mol^{-1}$ Thus process of formation of $O^{2-}$ in gas phase is unfavourable even though $O^{2-}$ is isoelectronic with neon. It is due to the fact that,

View Answer & Solution

The number of structural isomers possible from the molecular formula $C_3H_9N$ is :

View Answer & Solution

If the equilibrium constant for $N_2(g) + O_2(g) \rightleftharpoons 2NO(g)$ is K, the equilibrium constant for $\frac{1}{2}N_2(g) + \frac{1}{2}O_2(g) \rightleftharpoons NO(g)$ will be :-

View Answer & Solution

Which one of the following pairs of solution is not an acidic buffer ?

View Answer & Solution

Aqueous solution of which of the following compounds is the best conductor of electric current?

View Answer & Solution

Caprolactam is used for the manufacture of :

View Answer & Solution

On heating which of the following releases $CO_2$ most easily ?

View Answer & Solution

Strong reducing behaviour of $H_3PO_2$ is due to :

View Answer & Solution

Decreasing order of stability of $O_2$, $O_2^-$, $O_2^+$ and $O_2^{2-}$ is :-

View Answer & Solution

The number of water molecules is maximum in :-

View Answer & Solution

In which of the following pairs, both the species are not isostructural ?

View Answer & Solution

In the reaction with HCl, an alkene reacts in accordance with the Markovnikov's rule, to give a product 1-chloro-1-methylcyclohexane. The possible alkene is :- (A) Methylenecyclohexane ($C_6H_{10}=CH_2$) (B) 1-Methylcyclohexene

View Answer & Solution

Assuming complete ionization, same moles of which of the following compounds will require the least amount of acidified $KMnO_4$ for complete oxidation?

View Answer & Solution

Reaction of phenol with chloroform in presence of dilute sodium hydroxide finally introduces which one of the following functional group ?

View Answer & Solution

Previous
1
2
3
4
5
6
7
8
9
Next

Paper Info

Exam: NEET
Year: 2015
Questions: 173
Duration: 180 mins

Take Online All Papers