A. Potassium tetra cyano recuperate
B. Co-ordination number is 2
C. The ligand is positively charged
D. Central atom is present in the avionic sphere
✅ The correct answer is option D.
Chemistry MCQs
The molecular formula of toluene is
A. C7H7
B. C7H8
C. C8H8
D. C8H7
✅ The correct answer is option B.
The process of fermentation of starch involves many enzymes the sequence of enzymes used are
A. Diastase-maltase-zymase
B. Zymase-maltase-diastase
C. Maltase-diastase-zymase
D. Diastase-zymase-maltase
✅ The correct answer is option A.
The oxidation number of the central metal atom in [Ni(CO)4] is
A. 0
B. 2
C. 4
D. 6
✅ The correct answer is option C.
In benzene sulphonic acid the sulphonic group is attached with benzene ring through
A. Hydrogen
B. Oxygen
C. Sulphur
D. -OH
✅ The correct answer is option C.
The rectified spirit contains
A. 12% alcohol
B. 90% alcohol
C. 95% alcohol
D. 100% alcohol
✅ The correct answer is option C.
Group VIB of transition elements contains
A. Zn Cd Hg
B. Fe Ru Os
C. Cr Mo W
D. Mn Te Re
✅ The correct answer is option C.
Phenanthrene is a fused polycyclic compound contains ______ benzene rings
A. 2
B. 3
C. 4
D. 5
✅ The correct answer is option B.
K2Cr2O7/H2SO4 generate
A. Oxygen
B. Hydrogen
C. Nascent oxygen[O]
D. Nascent hydrogen[H]
✅ The correct answer is option C.
The elements in which d or f orbitals are in the process of completion are
A. Outer transition elements
B. Inner transition elements
C. Typical transition elements
D. Transition elements
✅ The correct answer is option D.