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.
The Num Lock button is often found on a keyboard's numerical keypad. Hemera Technologies/PhotoObjects.net/Getty Images. The Num Lock key is included on some computer keyboards to change the functionality of the number keys, enabling more functions and shortcuts to be built into the keyboard.