Chem Mantra
HomeCoursesOnline TestsForum
ForumQuestion Bank

Chemistry Question Bank

19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.

Filters:IChO (Chemistry Olympiad) ×MEDIUM ×Clear all
4,063 questions found — Page 156 of 163
MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryAlkyl and Aryl Halides

Which of the following has the highest normal boiling point?

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryAlkyl and Aryl Halides

Among the following alkyl halides, choose the one with the lowest boiling point.

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryAlkyl and Aryl Halides

Major (Excess) CH CH NH CH I P -> P should be

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryAlkyl and Aryl Halides

KSH -> P should be (a) (b)

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryAlkyl and Aryl Halides

Θ H C-SNa +CH CH -X -> The reaction is fastest when X is:

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryAlkyl and Aryl Halides

Haloforms are trihalogen derivatives of

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryAlkyl and Aryl Halides

Based on the above reaction, the major product would be (a) (b)

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryAlkyl and Aryl Halides

Which of the following species is an electrophile?

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryAlkyl and Aryl Halides

Which of the following species is an electrophile?

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryAlkyl and Aryl Halides

Which of the following species is a nucleophile?

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryAlkyl and Aryl Halides

Which of the following species is a nucleophile? (a) CH O

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryAlkyl and Aryl Halides

Which of the following species is a nucleophile?

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryAlkyl and Aryl Halides

Which of the following species is a nucleophile?

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryAlkyl and Aryl Halides

The decreasing order of nucleophilicity among the nucleophiles

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryAlkyl and Aryl Halides

Consider the following groups (I) — OCOCH3 (II) — OCH3 (III) — OSO2CH3 (IV) — OSO2CF3 The decreasing order of their leaving ability is

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryAlkyl and Aryl Halides

Among these nucleophiles, which of the following orders is correct for their nucleophilicity order in gas phase? - CH , NH , OH ,F (a) - CH >NH >OH >F (b) F OH NH CH (c) - OH >NH >F >CH

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryAlkyl and Aryl Halides

Θ Θ Θ Θ C H , N H ,O H,F Among these nucleophiles, which of the following orders is correct for their nucleophilicity in acetone? (a) Θ Θ Θ Θ CH N H O H> F (b) F OH NH CH (c) Θ Θ Θ Θ O H> N H F CH

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryAlkyl and Aryl Halides

Θ Θ Θ F, ,Br, I Cl Among these nucleophiles, which of the following orders is correct for their nucleophilicity order in DMF? (a) Θ Θ Θ F> >Br>I Cl (b) Θ Θ Θ Θ I>Br> >F Cl (c) Θ Θ Θ Θ I>Br>F>Cl

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryAlkyl and Aryl Halides

Θ Θ Θ Θ F,Cl,Br,I Among these nucleophiles, which of the following orders is correct for their nucleophilicity order in water? (a) Θ Θ Θ Θ F>Cl >Br>I (b) Θ Θ Θ Θ I>Br>Cl>F (c) Θ Θ Θ Θ I>Br>F>Cl (d) none of t…

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryAlkyl and Aryl Halides

Light C H Cl C H Cl HCl -> is an example of

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryAlkyl and Aryl Halides

When the concentration of alkyl halide is tripled and concentration of OH is reduced to half, the rate of SN2 reaction increased by:

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryAldehydes and ketones

Aldehydic group can occur :

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryAldehydes and ketones

The general formula of both aldehydes and ketones is:

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryAldehydes and ketones

The IUPAC name of CH3COCH(CH3)2 is :

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryAldehydes and ketones

The IUPAC name of Cl3CCH2CHO is :

← Previous153154155156157158159Next →
Sponsored

Master Chemistry for JEE, NEET & IChO

Access 19,000+ solved questions with expert explanations, chapter-wise tests, and full video lectures.

Explore Courses →Sign In Free

Difficulty

EasyMediumHard

Question Type

MCQMSQINTEGERSUBJECTIVE

Course

IChO (Chemistry Olympiad)JEE Advanced ChemistryJEE Mains ChemistryNEET Chemistry