Which of the following is/are true state...

Which of the following is/are true statements

Water vapour is absorbed by anhydrous calcium chloride both adsorbed by silica gel.

`NH_(3)` is absorbed by water but adsorbed by charcoal.

Sugar is decolourized by animal charcoal based on adsorption.

Water is absorbed by conc `H_(2)SO_(4)` .

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Which of the following is a true statement ?

In all mammals, offspring develop within the female

All mammals have hair and mammary glands

All mammals are land-dwelling forms

All of the above

They lack an orderly arrangement of actin and myosin filaments

They have less extensive sarcoplasmic reticulum and thus contract more slowly than do smooth muscle

They are connected by intercalated discs, through which action potentials spread to all cells in the heart

They have a relatively low sodium permeability and resting potentials more positive than an action potential threshold

Anionic detergents are sodium salts of sulphonated long chain alcohols or hydrocarbons.

Cationic detergents are quarternary ammonium salts of amines with acetates, chlorides or bromides as an ions.

Non-ionic detergents do not contain any ion in their constitution.

Detergents containing branched hydrocarbons chains are biodegradable .