Apr 4, 2016. The benzyl carbon is the carbon immediately proximate to a phenyl ring. Given this definition, #C_6H_5CH_2Br# is benzyl bromide; #C_6H_5CH_2OH# is benzyl alchohol, #C_6H_5CH_2NH_2# is benzylamine. Benzylic substitution can offer some enhancement to stability and reactivity.
Numeric keypad. A numeric keypad, number pad, numpad, or ten key, is the palm-sized, 17-key section of a standard computer keyboard, usually on the far right.It provides calculator-style efficiency for entering numbers.he arrangement of digits on numeric keypads with the 7-8-9 keys two rows above the 1-2-3 keys is derived from calculators and cash registers. It is notably different from the layout of telephone Touch-Tone keypads which have the 1-2-3 keys on top and 7-8-9 keys on the third row.
10 most extreme places on Earth. A soft key is a key on a computer or cell phone that can be programmed to perform multiple different functions of the userâs choosing. Most keys, including letters on computer keyboards and numbers on cell phones, are considered âhard keysâ because they cannot be reprogrammed.n this instance, the numeral key is acting as a soft key because it has been programmed by the user to perform a specific task. The term has a slightly different meaning on smartphones with touch screen keyboards or keyboards that appear graphically on the screenâs display device, rather than being fixed buttons.