When benzene is heated in air with V2O5 at 450°C yields_________________?
A. Phenol
B. Maleic anhydride
C. Glyoxal
D. Benzoic acid
Submitted by :- Jamil Ahmed
CHEMISTRY
Prepare for your upcoming test with a comprehensive collection of Chemistry multiple-choice questions (MCQs), ranging from basic to advanced topics. These Chemistry MCQs cover various sections of the subject, providing you with valuable practice and boosting your chances of scoring well in the Chemistry portion of the test. Whether you’re a student or a job seeker preparing for exams, these MCQs will prove beneficial for your test preparation.
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In 1 – pentene -4- yne the carbon exhibit hybridization_________________?
A. sp3 – sp2
B. sp2 – sp
C. sp2 – sp
D. sp3 – sp2 – sp
Submitted by :- Jamil Ahmed
Which one of the following looks odd__________________?
A. H2SO4
B. KMnO4
C. H2S
D. K2CrO4
Submitted by :- Jamil Ahmed
The most paramagnetic element is____________________?
A. Iron
B. Cobalt
C. Chromium
D. Manganese
Submitted by :- Jamil Ahmed
Which molecule has the highest bond energy among the halogens_________________?
A. Fluorine
B. Chlorine
C. Iodine
D. Bromine
Submitted by :- Jamil Ahmed
The most reactive allotropic form of phosphorus is________________?
A. White
B. Redox potential
C. Black
D. Violet
Submitted by :- Jamil Ahmed
Plasma is used in_________________?
A. Fluorescent bulb
B. Neon signs
C. Lasers
D. All of these
Submitted by :- Jamil Ahmed
A safe and more reliable method for drying the crystal is__________________?
A. Hot air currents
B. folds of filter paper
C. oven
D. Vacuum desiccator
Submitted by :- Jamil Ahmed
A limiting reactant is one which________________?
A. is taken in lesser quantity in grams as compared to other reactants
B. is taken in lesser quantity in volume as compared to other reactants
C. gives the maximum amount of the product which is required
D. gives the minimum amount of the product under consideration
Submitted by :- Jamil Ahmed
Which element has same isotopes like palladium___________________?
A. Nickel
B. Calcium
C. Cadmium
D. Tin
Submitted by :- Jamil Ahmed