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Chemistry 1488 MCQs [All-Courses]

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oost your exam preparation with our Chemistry MCQs designed for PPSC, FPSC, NTS, OTS, PTS, AJKPSC, BPSC, KPPSC, PMS, CSS, and all competitive exams.
Our content covers Basic Chemistry, Atomic Structure, Periodic Table, Chemical Reactions, Acids & Bases, Organic Chemistry, and everyday chemical concepts.

All Topics  1488

Which element is necessary for normal leaf development ?

A Si
B Ba
C Mg
D Ca
Correct Answer: Ca

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
Correct Answer: Intermolecular H-bonding

The word Alkali means__________________?

A Base
B Basic salt
C Ashes
D Spirit
Correct Answer: Ashes

The carbon-carbon bond strength is maximum in__________?

A CH3CH3
B CH2=CH2
C Benzene
D Cyclohexane
Correct Answer: CH3CH3

Which one is least ionic in nature and decompose on heating ?

A LiOH
B NaOH
C KOH
D CsOH
Correct Answer: LiOH

Which one of the following is caustic potash?

A NaOH
B KOH
C NaCl
D NaBH4
Correct Answer: KOH

Which one is natron ?

A Na2CO3
B Na2CO3.10H2O
C Na2CO3.H2O
D NaHCO3
Correct Answer: Na2CO3

Commercial detergents contain mainly _____________?

A RCOON
B RONa
C RSNa
D ROsO3Na
Correct Answer: RCOON

Which ion will have maximum value of heat of hydration ?

A A1+3
B Cs+
C Ba+
D Mg+2
Correct Answer: A1+3

_____________ surfactants perform well over a wide range water hardness and PH?

A Anionic
B Cationic
C Nonionic
D Neutral
Correct Answer: Nonionic
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