MHT CET Chemistry Model Test 01 — MHT - CET STD 12 Science — Question

Identify the in situ method of conservation among the following.

A metre scale made of a metal reads accurately at 25 °C. Suppose in an experiment an accuracy of 0.12 mm in 1 m is required, the range of temperature in which the experiment can be performed with this metre scale is ______.(coefficient of linear expansion of the metal is `20 xx 10^-6 / (°"C")`

Using Bohr's quantization condition, what is the rotational energy in the second orbit for a diatomic molecule. (I = moment of inertia of diatomic molecule, h = Planck's constant)

Which of the following is TRUE for individuals having 'A' blood group?

Which of the following set represents weak acids?

Which weeks of pregnancy are classified as second trimester?

Detergents in hot water enable grease to be removed from the dishes by ____________.

The dieback of Citrus and reclamation disease of cereals and leguminuous plants is due to the deficiency of ______.

Two cells when connected in series are balanced on 8 m on a potentiometer. If the cells are connected with polarities of one of the cell reversed, they balance on 2 m. The ratio of e.m.f's of the two cells is ____________.