The Branch of chemistry dealing with brewing and distilling is called _______ ?
A. Zygology
B. Zymology
C. Zymurgy
D. Zootaxy
Submitted by :- Jamil Ahmed
What is the molecular formula for Nitric acid ________ ?
A. HNO2
B. HNO3
C. HN2O2
D. H2NO4
Submitted by :- Jamil Ahmed
The discovery of neutron became very late because _______ ?
A. It does not carry any charge
B. It does not move
C. It is a fundamental particle
D. It is present in nucleus
Submitted by :- Jamil Ahmed
The absolute value of charge on electron was determined by ________ ?
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
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