_____________ surfactants perform well over a wide range water hardness and PH?
A. Anionic B. Cationic C. Nonionic D. Neutral
Chemistry MCQs
Commercial detergents contain mainly _____________?
A. RCOON B. RONa C. RSNa D. ROsO3Na Muhammad Ali Kunbhar
Which one of the following is caustic potash?
A. NaOH B. KOH C. NaCl D. NaBH4
The carbon-carbon bond strength is maximum in__________?
A. CH3CH3 B. CH2=CH2 C. Benzene D. Cyclohexane
Which of the following effects best explains that o-nitrophenol is insoluble in water?
A. Inductive effect B. Resonance effect C. Intermolecular H-bonding D. Isomeric effect
Which one of the following is most acidic?
A. Phenol B. P-nitrophenol C. O-nitrophenol D. M-nitrophenol
Chlorine Cl when attached to benzene has________?
A. +I and +R effect B. -1 and +R effect C. +1 and -R effect D. -I and -R effect
The criteria for aromaticity is presence of_________?
A. Unsaturations B. Cyclic structure C. Presence of 4nπ electrons D. Presence of 4n+2π electrons
The bond angle between hybrid orbitals in methane CH3 is___________?
A. 115.5° B. 109.5° C. 105. 7° D. 180°
The bond length of C=C is___________?
A. 1.20A° B. 1.34A° C. 1.54A° D. 1.68A°