Which polymer from following is used as synthetic leather?

Which among the following reactions represents Carbylamines reaction?

Which of the following salts turns red litmus blue in its aqueous solution?

The molecule in which central atom does NOT undergo \(\mathrm{sp}^3\) hybridisation is

What is the calculated value of spin only magnetic moment in terms of \(\mathrm{BM}\) if only one unpaired electron is present in a species?

Identify-I effect causing group form following.

According to molecular orbital theory, antibonding molecular orbitals of \(\mathrm{O}_{2}\) contain

Given below are two statements: Based on them select the correct option given below.
Statement I: Activated sludge is obtained in grit chamber.
Statements II: Activated sludge is pumped into anaerobic digester.

If \(\overline{\mathrm{a}}, \overline{\mathrm{b}}, \overline{\mathrm{c}}\) are non-coplanar vectors and \(\overline{\mathrm{p}}=\frac{\overline{\mathrm{b}} \times \overline{\mathrm{c}}}{[\overline{\mathrm{a}} \overline{\mathrm{b}} \overline{\mathrm{c}}]}, \overline{\mathrm{q}}=\frac{\overline{\mathrm{c}} \times \overline{\mathrm{a}}}{[\overline{\mathrm{a}} \overline{\mathrm{b}} \overline{\mathrm{c}}]}, \overline{\mathrm{r}}=\frac{\overline{\mathrm{a}} \times \overline{\mathrm{b}}}{[\overline{\mathrm{a}} \overline{\mathrm{b}} \overline{\mathrm{c}}]}, \quad\) then \(2 \overline{\mathrm{a}} \cdot \overline{\mathrm{p}}+\overline{\mathrm{b}} \cdot \overline{\mathrm{q}}+\overline{\mathrm{c}} \cdot \overline{\mathrm{r}}=\)

If \(\mathrm{a}, \mathrm{b}, \mathrm{c}\) are non-negative distinct numbers and \(\mathrm{a} \hat{\imath}+\mathrm{a} \hat{\jmath}+\mathrm{c} \hat{k}, \hat{\imath}+\hat{k}\) and \(\mathrm{c} \hat{\imath}+\mathrm{c} \hat{\jmath}+\mathrm{b} \hat{k}\)
are coplanar vectors, then

It is easier to spray water to which soap is added because addition of soap to water

Three numbers are chosen at random from numbers 1 to 20 . The probability that they are consecutive is

Let the current 'I' be associated with an electron of charge 'e' moving in a circular orbit of radius ' \(r\) ' with speed ' \(v\) ' around the positively charged nucleus. The ratio \(\frac{r}{v}\) is