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mnsoomro
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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…
The absolute value of charge on electron was determined by ________ ?
A. J.J.Thomson B. Chadwick C. Rutherford D. Robert Millikan Submitted by :- Jamil Ahmed
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…
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?
A. AgF B. AgCl C. AgBr D. AgI Submitted by :- Jamil Ahmed
Which of the following alloys contain(s) Cu and Zn?
A. Bronze B. Brass C. Gun-metal D. Type metal Submitted by :- Jamil Ahmed