List of top Questions asked in NEET (UG)

Two metallic spheres of radii 1 cm and 3 cm are are given charges of $ -1 \times 10^{-2} C $ and $5 \times 10^{-2} C $ , respectively. If these are connected by a conducting wire, the final charge on the bigger sphere is
The dimension of $\left(\mu_{0} \in_{0}\right)^{-1 / 2}$ are :
A solid cylinder of mass $3\, kg$ is rolling on a horizontal surface with velocity $4\, ms^{-1}$. It collides with a horizontal spring of force constant $200\, N\, m^{-1}$. The maximum compression produced in the spring will be
Standard enthalpy of vapourisation $\Delta_{\text {vap }} H ^{\Theta}$ for water at $100^{\circ} C$ is $40.66\, kJ\, mol ^{-1}$. The internal energy of vaporisation of water at $100^{\circ} C$ (in $kJmol ^{-1}$) is : (Assume water vapour to behave like an ideal gas)
A $200\, W$ sodium street lamp emits yellow light of wavelength $0.6 \, \mu m. $ Assuming it to be $25 \% $ efficient in converting electrical energy to light, the number of photons of yellow light it emits per second is
Which one of the following statements regarding photochemical smog is not correct?
Common cold differs from pneumonia in that Pneumonia
Limiting molar conductivity of $NH_4OH $ $[i.e. \,\wedge^\circ {m (NH_4OH)}]$ is equal to
A car of mass $1000 \,kg$ negotiates a banked curve of radius $90\,m$ on a frictionless road. If the banking angle is $45^{\circ}$, the speed of the car is
Two similar coils of radius $R$ are lying concentrically with their planes at right angles to each other. The currents flowing in them are $I$ and $2I$, respectively. The resultant magnetic field induction at the centre will be
Gymnosperms are also called soft wood spermatophytes because they lack
Which one of the following is not a gaseous biogeochemical cycle in ecosystem?
How many organisms in the list given below are autotrophs ? Lactobacillus, Nostoc, Chara, Nitrosomonas, Nitrobacter Streptomyces, Saccharomyces, Trypanosoma, Porphyra, Wolffia
Vexillary aestivation is characteristic of the family
Cymose inflorescence is present in
Which is not a functional unit of an ecosystem
The gynoecium consists of many free pistils in flowers of
Which one of the following pairs is wrongly matched ?
Vernalization stimulates flowering in
How many plants in the list given below belongs to the Fabaceae family? Mustard, Gram, Tulip, Asparagus, Arhar, Sun hemp, Chilli, Colchicine, Onion, Moong, Pea, Tobacco, Lupin, Trifolium, Sesbania
When $Cl_2$ gas reacts with hot and concentrated sodium hydroxide solution, the oxidation number of chlorine changes from
Aluminium is extracted from alumina $(Al_2O_3)$ by electrolysis of a molten mixture of
Two spheres $A$ and $B$ of masses $m_1$ and $m_2$ respectively collide. $A$ is at rest initially and $B$ is moving with velocity $v/2$ along x-axis. After collision $B$ has a velocity in a direction perpendicular to the original direction. The mass $A$ moves after collision in the direction
A metal crystallizes with a face-centered cubic lattice. The edge of the unit cell is $408\, pm$. The diameter of the metal atom is
Which of the statements is not true?