STANDARD Questions

Who is considered as father of genetics

Match column I with column II.

Which stage connecting link between Meiosis I and Meiosis II in

Highest growth is found in

In a Geiger-Marsden experiment. Find the distance of closest approach to the nucleus of a 7.7 MeV α-particle before it comes momentarily to rest and reverses its direction. (Z for gold nucleus = 79)

Wavefront is the locus of all points, where the particles of the medium vibrate with the same

Inertia is that property of a body by virtue of which the body is

Which of the following is correct about magnetic monopole?

Improved programmes covering wider reproduction related areas are currently in operation under the popular name _______ programmes

A real gas behaves like an ideal gas if its

The general formula of carbohydrates is

The transfer of sperms into female genital tract is called as ________.

System in which there is no exchange of matter, work or energy from surroundings is

In man, the urea is mainly produced in

Out of the following representing motion of a particle which represents SHM? 1. x = sin³ωt 2. x = 1 + ωt + ω²t² 3. x = cosωt + cos3ωt + cos5ωt 4. x = sinωt + cosωt

Identify the basic amino acid from the following.

In man and mammals, air passes from outside into the lungs through

Which of the following is not an ore of aluminium?

The temperature which has same numerical value on Celsius and Fahrenheit scale is

The number of ions given by [Pt(NH₃)₆]Cl₄ in aqueous solution will be

Which one of the following is a 'd-block element'?

The efferent process of neuron is known as

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): With the help of several ommatidia, a cockroach can perceive several images of an object, i.e., mosaic vision. Reason (R): Mosaic vision gives more sensitivity but less resolution. In the light of the above statements, choose the most appropriate answer from the option given below:

Homogeneous mixture of two or more than two components is called

Which of the following statements is incorrect?

The majority charge carriers in P-type semiconductor are

Which of the following represents the given sequence of hybridisation of carbon atoms from left to right sp², sp², sp, sp?

The nucleus of helium contains

A cup contains 250 g of water. Find the total positive charge present in the cup of water.

The current in a wire varies with time according to the equation I = 4 + 2t, where I is in ampere and t is in second. The quantity of charge which has to be passed through a cross-section of the wire during the time t = 2 s to t = 6 s is

Which of the following conversions is correct?

Which of the following carbonyl compounds is most polar?

Which one of the following reducing agents is likely to be most effective in bringing about the following change? R−C−NH₂

Which of the following is unitless quantity?

For every one ³⁷Cl isotope there are three ³⁵Cl isotopes in a sample of chlorine. What will be the average atomic mass of chlorine?

Which of the following statements is not true?

The (x, y, z) coordinates of two points A and B are given respectively as (0, 4, −2) and (−2, 8, −4). The displacement vector from A to B is

Which of the following group of animals reproduces only by sexual means?

During electrophoresis, DNA fragments move towards the

Which of the following is a primary halide?

Which one of the following aspects is an exclusive characteristic of living things

The number of images formed by the lens, if an object is placed on the axis of the lens is:

These processes are necessary for the complete development of male gametophyte from pollen mother cell

The centre of mass of a body

Bacteria and fungi in a forest ecosystem are generally

Difference between the prokaryotic and eukaryotic cells in having

Macrophages and Leucocyte exhibit :-

The cell reaction of the galvanic cell : Cu(s)|Cu²⁺(aq)||Hg²⁺(aq)|Hg(l) is

Membrane-bound organelles are absent in

What is the formal charge on carbon atom in the following two structures: :Ö: S = C = S: :Ö: :Ö: C :Ö: :Ö: ²⁻