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

In a multiple-choice question, there are three options out of which only one is correct. A person is guessing the answer at random. If there are 7 such questions, then the probability that he will get exactly 4 correct answers is ______

For every value of x, the function f(x) = `1/7^x` is ______

If A = `[(1, 1, -1), (1, -2, 1), (2, -1, -3)]`, then (adj A)A = ______

V-l characteristics of LED is shown correctly by graph.

Identify the increasing order of effective magnetic moment of the following elements in their +2 oxidation state.

[Fe (Z = 26), Co (Z = 27), Ni (Z = 28), Cu (Z = 29)]

When a photon enters glass from air, which one of the following quantity does not change?

The commercial hatcheries provide ____________ day old chicks for poultry practices.

Magnetic dipole moment `vec"m"` of the coil, placed in uniform magnetic field of induction `vec"B"` does not depend on ____________.

Black colored form became dominant over the light colored form in England during industrial revolution after 1845. This can be owed to ______.