How am I suppose to know huh
Because methyl is an electron pumping group and It pumps electrons to Amine group to make it basic, But Ammonia has no influence from any basic groups. Therefore compared to Methyl-Amine, Ammonia is less basic
piperidine
in the case of aniline, the lone pair on nitrogen is involved in resonance with the benzene ring, hence its basicity decreases. no such resonance is seen in cyclohexyl amine, and the lone pair is available to abstract protons and it is stronger base than aniline.
Methyl amine in not an acid, but a (weak) base, pKb=3.36. It is comparable with the even weaker ammonia, NH3, pKb=4.76: CH3NH2 + H2O <<--> CH3NH3+ + OH-
"Methylamine is a good nucleophile as it is highly basic and unhindered, although, as an amine it is considered a weak base. Its use in organic chemistry is pervasive. Some reactions involving simple reagents include: with phosgene to methyl isocyanate, with carbon disulfide and sodium hydroxide to the sodium methyldithiocarbamate, with chloroform and base to methyl isocyanide and with ethylene oxide tomethylethanolamines."
acid-base
yellow
Yellow
Ethylamine is a primary amine and is an alkaline compound.
A base is yellow with methyl orange.
IN ACID: it turns methyl orange pink In base: it turns methyl orange yellow
acid base indicator or pH indicatorSome examples of acid base indicators are: gentian violet, malachite green, thymol blue, methyl yellow, bromophenol blue, congo red, methyl orange, screened methyl orange, bromocresol green, methyl red, methyl purple, phenolphthalein, indigo carmine, hydrangea flowers, anthocyanin, litmus, red cabbage, and purple cauliflower.