KVPY (SA) Mock ...

If the third and fifth terms of a geometric progression are 12 and 48 respectively, then the second term in it is

Which of the following is the solution of x + 1/x = 5/2 ?

At what time between 10 o'clock and 11 o'clock are the two hands of a clock symmetric with respect to the vertical line (give the answer to the nearest second)?

The sides of a triangle are distinct positive integers in an arithmetic progression. If the smallest side is 10, the number of such triangles is

If the pressure exerted by a liquid column of height 7 m on the bottom of the container is 77000 Nm^–2 and g is taken as 10 m/s², then the density of the liquid is

A block of mass 'M' is at rest on a plane surface inclined at an angle θ to the horizontal. The magnitude of force exerted by the plane on the block is

White light is split into a spectrum by a prism and it is seen on a screen. If we put another identical inverted prism behind it in contact, what will be seen on the screen?

The Kirchoff's first and second law, where the symbols have their usual meanings, are respectively based on

The following three objects (1) a metal tray, (2) a block of wood, and (3) a woollen cap are left in a closed room overnight. Next day the temperature of each is recorded as T₁, T₂ and T₃ respectively. The likely situation is

The IUPAC name of acetic acid (CH₃COOH) is

In which of the following states is carbon most electronegative?

The symbol of the element, whose atoms have the outer most electronic configuration 2s², 2p³ is

Two balloons, A and B, containing 0.2 moles and 0.1 moles, respectively, of helium at room temperature and 2.0 atm are connected. When equilibrium is established, the final pressure of He in the system is

Which of the following are arranged in the decreasing order of dipole moment?

Two cylinders containing carbon dioxide are connected together by a tube fitted with a tap. The capacity of one cylinder is 3 dm³ and that of the other cylinder is 2 dm³; the pressure of the first cylinder is 550 mm Hg and that of the second cylinder is 800 mm Hg. What will be the final pressure in the cylinders on opening the tap? (Temperature remains constant.)

Which of the following elements is least reactive to the oxygen present in the air at room temperature?

Which of the following orders of hydrocarbon compounds is correct in terms of decrease in the acidic character?

The series of reactions, which results in the production of urea, is

Direction of growth of roots in plants is an example of which tropic movement?

Which of the following is the cause of Kwashiorkor?

Which one of the following pairs is wrongly matched?

What is the name of an antibiotic that works against bacteria?

Total number of blood groups in the human body are

If birds are moved from 30°C to 10°C, their body temperature

Which of the following organelles has its own DNA and ribosome like mitochondria?

'On the origin of species, by means of Natural selection' was written by

A fish has evolved many features to help it survive in its environment. Which part of a fish protects the body?

What is the difference between flora and fauna?

Ram's uncle was suffering from 'diabetes' because his pancreas was not producing a hormone in a sufficient quantity. Identify the hormone.

In warmer weather, curd from milk forms faster because

What is common among snakes, turtles and lizards?

(1) Presence of scales
(2) Presence of lungs
(3) Presence of tough covering over the egg
(4) Presence of a notochord

Working together, Bill and Tom painted a fence in 8 hours. Last year, Tom painted the fence by himself. The year before, Bill painted it by himself, but took 12 hours less than what Tom took. How long did Bill and Tom take (in hours) when each was painting alone?

A naturally occurring element Y is 80.99% ³⁴Y, 8.00% ³⁵Y and 11.01% ³⁶Y. What is the atomic weight of Y?

Independent assortment of Mendel was proved by __________.

The primary function of DNA polymerase is to

Which of the following pairs of nitrogen bases consititues the purines of DNA?

A regular check on the unborn baby of a lady towards the end of her pregnancy showed a heart rate of 80 beats per minute. What would the doctor infer about the baby`s heart condition from this?

What is the systolic and diastolic pressure of a normal human being respectively?