What is the molecular weight of Ammonia (NH3) ________ ?
A. 17.31 g/mol
B. 18.31 g/mol
C. 19.31 g/mol
D. 27.33 g/mol
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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Sum of protons and neutrons in an atom gives off _________ ?
A. Nucleon number
B. Mass number
C. Atomic number
D. Both A and B
Submitted by :- Jamil Ahmed
Colour in transition metal compounds is attributed to____________?
A. Small sized metal ions
B. Absorption of light in UV region
C. Complete ns sub-shell
D. Incomplete (n-1) d sub-shell
Submitted by :- Jamil Ahmed
The maximum oxidation shown by Manganese is_________?
A. +2
B. +4
C. +5
D. +7
Submitted by :- Jamil Ahmed
Which of the following is soluble in water?
Which of the following alloys contain(s) Cu and Zn?
A. Bronze
B. Brass
C. Gun-metal
D. Type metal
Submitted by :- Jamil Ahmed
Transition elements, in general, exhibit the following properties, except one. Name that property?
A. Variable oxidation state
B. Natural Radioactivity
C. Tendency to form complexes
D. Formation of alloys
Submitted by :- Jamil Ahmed
The substance used in cancer therapy is___________?
A. Fe
B. Co
C. Ni
D. Rn
Submitted by :- Jamil Ahmed
If steel is heated to a temperature well below red heat and is then cooled slowly, the process is called_________?
Carbon in wrought iron is present as_________?
A. Silicon carbide
B. Iron carbide
C. Graphite
D. Partly as iron carbide and partly as graphite
Submitted by :- Jamil Ahmed