NEET 2018

CaO

BaO

BeO

MgO

In acidic (strong) medium aniline is present as anilinium ion.

In absence of substituents nitro group always goes to m-position.

In electrophilic substitution reactions amino group is meta directive.

In spite of substituents nitro group always goes to only m-position.

They contain strong covalent bonds in their polymer chains.

Examples are bakelite and melamine.

They are formed from bi- and tri-functional monomers.

They contain covalent bonds between various linear polymerchains.

$$60 mL \frac{M}{10} HCl+40 mL \frac{M}{10} NaOH$$

$$55 mL \frac{M}{10} HCl+45 mL \frac{M}{10} NaOH$$

$$75 mL \frac{M}{5} HCl+25 mL \frac{M}{5} NaOH$$

$$100 mL \frac{M}{10} HCl+100 mL \frac{M}{10} NaOH$$

The sign of charge on she ion alone

Both magnitude and sign of the charge on the ion

Size of the ion alone

ao magnitude of the charge on the ion alone

$$1.08 \times 10^{-8} mol^{2} L^{-2}$$

$$1.08 \times 10^{-14} mol^{2} L^{-2}$$

$$1.08 \times 10^{-12} mol^{2} L^{-2}$$

$$1.08 \times 10^{-10} mol^{2} L^{-2}$$

$$CO_{2}$$

$$O_{2}$$

$$H_{2}$$

$$NH_{3}$$

$$Mg_{3}X_{2}$$

$$Mg_{2} X$$

$$MgX_{2}$$

$$Mg_{2}X_{3}$$

$$\frac{1}{2}$$

$$\frac{3\sqrt{3}}{4\sqrt{2}}$$

$$\frac{4\sqrt{3}}{3\sqrt{2}}$$

$$\frac{\sqrt{3}}{\sqrt{2}}$$

The value of m for $$d_z2$$ is Zero

An orbital is deseby three quantum numbers while.an electron in an atom is designated byfourquantum numbers.

Total orbital angular momentum of electron is S orbital equal to Zero