MHT-CET PCM 01 — MHT - CET STD 12 Science — Question

The mass of sulphur dioxide produced by burning 32 g of sulphur in excess of oxygen in contact process is ____________ g.

(Average atomic mass: S = 32 u, O = 16 u).

Which of the following term correctly describes the microenvironment surrounding the root from which plants absorb water?

Select the mismatched pair. 

If the Earth-Sun distance is held constant and the mass of the Sun is doubled, then the period of revolution of the earth around the Sun will change to ____________.

Which of following elements does not react with hot concentrated sulphuric acid?

In Wheatstone's network p = 2 `Omega` , Q = 2 `Omega`, R = 2 `Omega` and S = 3 `Omega`. The resistance with which S is to be shunted in order that the bridge may be balanced is ______.

The kinetic energy of a revolving satellite (mass m) at a height equal to thrice the radius of the earth (R) is ______.

A parallel combination of two capacitors, 3.6 µF and 7.2 µF, are connected across a 21 V battery. The electric potential energy stored by the capacitors are in the ratio.

The ionic charges on chromate ion and dichromate ion respectively are ______.

A stone of mass m tied to a string of length `l` is rotating along a circular path If the torque on the stone is zero, then ____________.