2020 MHT-CET PCM SET - 02 — MHT - CET STD 12 Science — Question

Which class of the following phytohonnone does kinetin belong to?

Which of the following has a greater number of electrons than neutrons?(Mass number of Mg, C, O and Na is 24, 12, 16 and 23 respectively).

Absorption coefficient of totally blackbody is ______.

During electrolysis of aqueous NaCl, the product obtained at cathode is ____________.

Let `bar"a"` and `bar"b"` be two unit vectors. If the vectors `bar"c" = bar"a" + 2bar"b"` and `bar"d" = 5bar"a" - 4bar"b"` are perpendicular to each other, then the angle between `bar"a"` and `bar"b"` is ______.

Variable number of tandem repeats has significance in ______.

From the following identify the WRONG statements.

i. All enzymes are composed of proteins.

ii. All proteins are enzymes.

iii. Some hormones are proteins.

iv. Some nucleic acid also acts as enzymes.

v. All enzymes are inorganic in nature.

vi. Enzymes are biocatalysts.

Every organism occupies a particular place and has a functional role in an ecosystem known as ____________.