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Chemistry · Structure of atom
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6627 questions
Current Affairs · 2026-08-07
Who presented the Tamilaga Vettri Kazhagam (TVK)-led government’s maiden budget for FY2026-27 in Tamil Nadu?
Read answer →Biology · PLANT KINGDOM
Which statement correctly describes the dominant plant body and sex organs of bryophytes?
Read answer →Current Affairs · 2026-09-17
Alla Kali Krishna Srinivas, popularly known as ‘Alla Nani’, who passed away in September 2026, served as the Deputy Chief Minister of which state?
Read answer →Chemistry · PYQ NEET UG 2019(1)
Which mixture of the solutions will lead to the formation of negatively charged colloidal [\( \text{AgI} \)]\( \text{I}^- \) sol?
Read answer →Physics · SYSTEMS OF PARTICLES AND ROTATIONAL MOTION
An engine needs to transmit a torque of \( 180 \text{ N m} \) to maintain a rotor at a uniform angular speed of \( 200 \text{ rad s}^{-1} \). If the engine operates with an efficiency of \( 75\% \), the power input supplied to the engine is:
Read answer →Physics · MOTION IN A STRAIGHT LINE
Match List-I with List-II regarding graph features in one-dimensional motion: List-I List-II A Position-time curve concave upwards (\( d^2x/dt^2 > 0 \)) I Net displacement over time interval B Position-time curve concave downwards (\( d^2x/dt^2 < 0 \)) II Motion with negative acceleration turning back after stopping C v-t graph with negative slope crossing time axis III Motion with positive acceleration (\( a > 0 \)) D Area under v-t graph between \( t_1 \) and \( t_2 \) IV Motion with negative acceleration (\( a < 0 \)) Choose the correct answer from the options given below:
Read answer →Current Affairs · 2026-09-16
Under the MISHTI initiative, what is the target area of mangrove restoration set for Gujarat between 2023 and 2027?
Read answer →Chemistry · EQUILIBRIUM
When \( \text{HCl} \) gas is passed through a saturated solution of \( \text{NaCl} \), pure \( \text{NaCl} \) precipitates out while impurities like \( \text{MgSO}_4 \) and \( \text{Na}_2\text{SO}_4 \) remain dissolved. The underlying reason for this phenomenon is:
Read answer →Current Affairs · 2026-08-19
When was BSE Limited (formerly Bombay Stock Exchange), Asia's oldest stock exchange, established?
Read answer →Physics · PYQ NEET UG 2021
An infinitely long straight conductor carries a current of \( 5\text{ A} \) as shown. An electron is moving with a speed of \( 10^5\text{ m/s} \) parallel to the conductor. The perpendicular distance between the electron and the conductor is \( 20\text{ cm} \) at an instant. Calculate the magnitude of the force experienced by the electron at that instant.
Read answer →Current Affairs · 2026-09-21
From which date will the Registration of Births and Deaths (Amendment) Act, 2026 come into force across India?
Read answer →Biology · The Living World
Consider a scenario where a biologist discovers a new plant species. In accordance with ICBN guidelines, which of the following represents the correct format and linguistic rule for writing its scientific name if the author's name is to be cited?
Read answer →Current Affairs · 2026-09-23
The 5th edition of SEMICON India 2026 was held at which of the following venues in New Delhi?
Read answer →Physics · PYQ NEET UG 2019(2)
A deep rectangular pond of surface area \( A \), containing water (density = \( \rho \), specific heat capacity = \( s \)), is located in a region where the outside air temperature is at a steady value of \( -26^\circ\text{C} \). The thickness of the frozen ice layer in this pond, at a certain instant is \( x \). Taking the thermal conductivity of ice as \( K \), and its specific latent heat of fusion as \( L \), the rate of increase of the thickness of ice layer, at this instant, would be given by
Read answer →Physics · MOTION IN A STRAIGHT LINE
A particle moves along a straight line with uniform acceleration \( a \). Its velocities at two points A and B are \( v_A = 10 \text{ m/s} \) and \( v_B = 30 \text{ m/s} \) respectively. Calculate the velocity of the particle as it passes through the midpoint C of the segment AB.
Read answer →Biology · PYQ NEET UG 2024
Which of the following are fused in somatic hybridization involving two varieties of plants?
Read answer →Physics · MOTION IN A STRAIGHT LINE
A police van moving on a highway with a speed of \( 30\text{ km h}^{-1} \) fires a bullet at a thief's car speeding away in the same direction with a speed of \( 192\text{ km h}^{-1} \). If the muzzle speed of the bullet is \( 150\text{ m s}^{-1} \), with what speed does the bullet hit the thief's car?
Read answer →Physics · PYQ NEET UG 2019(1)
An electron is accelerated through a potential difference of \( 10,000\text{ V} \). Its de Broglie wavelength is, (nearly) (\( m_e = 9 \times 10^{-31}\text{ kg} \))
Read answer →Chemistry · PYQ NEET UG 2022
Match List-I with List-II: List-I (Products formed) List-II (Reaction of carbonyl compound with) i Cyanohydrin a \( \text{NH}_2\text{OH} \) ii Acetal b \( \text{RNH}_2 \) iii Schiff’s base c alcohol iv Oxime d \( \text{HCN} \) Choose the CORRECT answer from the options given below:
Read answer →Chemistry · PYQ NEET UG 2024
Given below are two statements: Statement I : The boiling point of three isomeric pentanes follows the order n-pentane > isopentane > neopentane Statement II : When branching increases, the molecule attains a shape of sphere. This results in smaller surface area for contact, due to which the intermolecular forces between the spherical molecules are weak, thereby lowering the boiling point. In the light of the above statements, choose the most appropriate answer from the options given below:
Read answer →Current Affairs · 2026-09-02
The United Nations observes the International Day for People of African Descent annually on which date?
Read answer →Physics · PYQ NEET UG 2019(1)
Increase in temperature of a gas filled in a container would lead to:
Read answer →Physics · LAWS OF MOTION
