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.Management Sciences
Category: Chemistry Mcqs
The compound or complex ion which has a ring in its structure__________________?
0
A. polydentate ligand
B. chelate
C. monodentate ligand
D. hydrate
Unpaired electron in a molecule gives ______________ character ?
A. Ferromagnetic
B. Paramagnetic
C. Diamagnetism
D. Both A & B
The common thing in phthalic acid and oxalic acid is that both are_________________?
A. Aromatic
B. Dicarboxylic
C. Hydrocarbons
D. Strong acids
All the enthalpy changes are________________?
A. Negative
B. Positive
C. May or may not be A or B
D. none
The composition of mixture of clay and lime stone in the raw for cement material is __________________?
A. 75% lime stone and 25% clay
B. 25% lime stone and 75% clay
C. 15% lime stone and 55% clay
D. 55% lime stone and 15% clay
Sodium is not observed in +2 oxidation state because of its__________________?
A. high first ionization potential
B. high second ioniation potential
C. high ionic radius
D. high electronegativity
When a compound of transition element is dissolved in a solution of salt then it produces____________________?
A. simples ions
B. complex ions
C. double salts
D. strong anions
Which of the following is not a secondary pollutant_________________?
A. ozone
B. carbonic acid
C. sulphuric acid
D. carbon dioxide
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