List of top Questions asked in NEET (UG)

The oxygenation activity of RuBisCo enzyme in photorespiration leads to the formation of
The plant parts which consist of two generations - one within the other: 
(a) Pollen grains inside the anther 
(b) Germinated pollen grain with two male gametes 
(c) Seed inside the fruit 
(d) Embryo sac inside the ovule
The process responsible for facilitating loss of water in liquid form from the tip of grass blades at night and in early morning is
The proteolytic enzyme rennin is found in :
The ratio of contributions made by the electric field and magnetic field components to the intensity of an electromagnetic wave is : (c = speed of electromagnetic waves)
Two particles of mass $5\,kg$ and $10\,kg$ respectively are attached to the two ends of a rigid rod of length 1m with negligible mass. The centre of mass of the system from the $5\,kg$ particle is nearly at a distance of :
Urea reacts with water to form $A$ which will decompose to form $B$. $B$ when passed through $Cu^{2+}(aq)$, deep blue colour solution C is formed. What is the formula of C from the following
What is the change in oxidation number of carbon in the following reaction? 
\(CH_4(g) + 4Cl_2 (g) \rightarrow CCl_4(l) + 4HCl (g)\)
What is the role of gypsum, $CaSO_{4}.2H_{2}O$ in setting of cement ? Identify the correct option from the following :
When a uranium isotope $^{235}_92 U$ is bombarded with a neutron, it generates $^{89}_{36} Kr$, three neutrons and :
Which of the following alkane cannot be made in good yield by Wurtz reaction ?
Which of the following statements is incorrect about gymnosperms ?
Which of the following statements are true for the phylum-Chordata? 
(a) In Urochordata notochord extends from head to tail and it is present throughout their life. 
(b) In Vertebrate notochord is present during the embryonic period only. 
(c) Central nervous system is dorsal and hollow. 
(d) Chordata is divided into 3 subphyla ; Hemichordata, Tunicata and Cephalochordata.
Which of the following regions of the globe exhibits highest species diversity ?
Which of the following refer to correct example(s) of organisms which have evolved due to changes in environment brought about by anthropogenic action? 
(a) Darwin Finches of Galapagos islands. 
(b) Herbicide resistant weeds. 
(c) Drug resistant eukaryotes. 
(d) Man-created breeds of domesticated animals like dogs.
Which of the following pairs is of unicellular algae ?
Which of the following oxoacid of sulphur has -O-O- linkage?
Which of the following is cationic detergent?
Which of the following is a basic amino acid ?
An element has a body centered cubic (bcc) structure with a cell edge of 288 pm. The atomic radiusis:
The solids which have negative temperature coefficient of resistance are :
A screw gauge has least count of 0.01 mm and there are 50 divisions in its circular scale. The pitch of the screw gauge is:
Choose the correct pair from the following
Light with an average flux of $20\,\Omega/cm^2$ falls on a non-reflecting surface at normal incidence having surface area $20\,cm^2$. The energy received by the surface during time span of $1\,minute$ is :
A spherical conductor of radius 10 cm has a charge of \(3.2 \times 10^{-7} C\) distributed uniformly. What is the magnitude of electric field at a point \(15\,cm\) from the centre of the sphere?
\((\frac {1}{4\pi \epsilon_o} = 9 \times 10^9 Nm^2/C^2)\)