List of practice Questions

Match column $I$ with column $II$ and select the correct Option from the codes given below.

Mass flow hypothesis was first described by

Mass M is divided into two parts X and (1-X). For a given seperation the value of X for which the gravitational attraction between the two pieces becomes maximum is

Mass percentage of deuterium in heavy water is

Mass spectrometric analysis of potassium and argon atoms in a Moon rock sample shows that the ratio of the number of $(stable)^{40}$ Ar atoms present to the number of (radioactive) 4$^{\circ}$K atoms is 10.3. Assume that all the argon atoms were produced by the decay of potassium atoms, with a half-life of 1.25 $\times$ 10. 9 yr. How old is the rock?

Mark the incorrect statement about ATP

Marsupials are

Maryland mammoth tobacco is a short day plant. Its critical duration of darkness is $10$ hours. Under which of the following conditions will it not flower ?

Marginal and interveinal chlorosis occurs in the deficiency of

Marginal placentation is generally found in Family

Mark the following statements as true or false. (i) Ordinary hydrogen is a mixture of $75\%$ $ortho$ and $25\%$ para-forms. (ii) All the four atoms of molecule of $H_2O_2$ lie in the same plane. (iii) Hydrogen peroxide is neutral like water. (iv) $H_2O_2$ can be prepared from $BaO_2$ but not from $MnO_2$ and $PbO_2$

Malarial parasite is

Malpighian tubules remove excretory products from

Many blue-green algae occur in thermal springs (hot water springs). The temperature tolerance of these algae have been attributed to their

Major source of methane in India is

Main process for the manufacture of $Na_3CO_3$ is

Maize grain is a fruit known as

Major disadvantages of hydroponics include

Major inorganic component of vertebrate bone is

Main function of the RF amplifiers in a superheterodyne receiver is to

Magnetic moment of $Ce^{3+}$ ion on the basis of ??pin-only?

Magnetic field at the center (at nucleus) of the hydrogen like atoms (atomic number =Z) due to the motion of electron in n the orbit is proportional to

Magnetic field due to a current carrying toroidal solenoid is independent of :

Magnetic field induction at the center of a circular coil of radius 5cm and carrying a current 0.9 A is ( in S.I. units) ($\in_0$ = absolute permittivity of air in S.l. units: velocity of light= $3 \times 10^8\,ms^{-1}$ )

Magnetic flux linked with a stationary loop of resistance R varies with respect to time during the time period T as follows: $\phi=at(T-t)$ the amount of heat generated in the loop during that time (inductance of the coil is negligible) is