<variant>
<variant>
<variant>-
<variant>-
<question> :
<variant>
<variant>
<variant>
<variant>
<variant>
<question> :
<variant>R-NH2
<variant>R-
<variant>R-O-R
<variant>NH3
<variant>R-SH
<question> :
<variant>-
<variant>
<variant>-
<variant>2,4,6-
<variant>2,4-
<question> :
<variant>
<variant>
<variant>
<variant>
<variant>
<question> l3
<variant>
<variant>
<variant>
<variant>
<variant>
<question>
<variant>
<variant>
<variant>
<variant>
<variant>
<question> ,
<variant>II3
<variant>Si2
<variant>I
<variant>NCI
<variant>CaCI2
<question> :
<variant> (S)
<variant> ()
<variant> (SR)
<variant> (AN)
<variant> (SN)
<question> :
<variant>2--2-
<variant>1--2-
<variant>1,2--2-
<variant>1,1--2-
<variant>1,1,1--2-.
<question> , 2,3-:
<variant>4, 1, 2
<variant>2, 3, 3
<variant>3, 2, 2
<variant>4, 2, 1
<variant>1, 4, 0
<question>
<variant>-1
<variant>
<variant>-2
<variant>
<variant>
<question> :
<variant>sp2
<variant>sp
<variant>sp3
<variant>spd2
<variant>sp2d1
<question> :
<variant>2--2
<variant>-1
<variant>-2
<variant>2--1
<variant>-2
<question> MnO4
<variant>
<variant>
<variant>
<variant>
<variant>