What hybridization is present on carbon atoms in Ethyne C2H2:
a)Sp2
b)Sp
c)Sp3
d)dspz
Ca (Z=20) forms ionic bond with (Z=17). What is the chemical formula of Calcium chloride:
a)CaCI
b)CaCl2
c)Ca2CI
d)Ca2Cl2
Valence shell electronic configuration of an element is 4s2 4p1. To which group does the element belong:
a)IIIA
b)IA
c)IB
d)IIIB
What volume of oxygen at S.T.P required to burn 500 dm3 of ethene:
a)1500 dm3
b)500 dm3
c)2000 dm3
d)1000 dm3
What’s the IUPAC name of α, β-dimethyl valeric acid:
a)3,4- dimethyl pentanoic acid
b)2,3- dimethyl pentanoic acid
c)3,4- dimethyl hexanoic acid
d)2,3- dimethyl hexanoic acid
Which of the following is formed when acetone is oxidized:
a)Ethanoic acid
b)Propanoic acid
c)Formic acid
d)Butyric acid
What is the IUPAC name of stearic acid:
a)Hexanoic acid
b)Octanoic acid
c)Octadecanoic acid
d)Hexadecanoic acid
Which of the following is different in Na+ (Z=11), Mg^+2 (Z=12) and Al^+3 (Z=13):
a)Number of electrons
b)Number of shells
c)Electronic configuration
d)Number of protons
What’s the mass of one proton:
a)Equal to positron
b)Equal to 1836 neutron
c)Equal to 1836 electron
d)Equal to electron
Which of the following has only one orientation in space, in the magnetic Field:
a)S orbital
b)P orbital
c)D orbital
d)F orbital
