A. Iron
B. Calcium
C. Mercury
D. Chromium
Submitted by: Aamir Hullio
Related Mcqs:
- Many properties of an element and its compounds can be predicted from the position of the element in the periodic table. What property could not be predicted in this way ?
A. The nature of its oxides
B. The charge on its ions
C. The formula of its oxide
D. Its number of isotopes - Which of the following alloys contain(s) Cu and Zn?
A. Bronze
B. Brass
C. Gun-metal
D. Type metalSubmitted by: Muhammad Ali Kunbhar
- Which of the following ion formation is always exothermic ?
A. Uni-negative
B. Uni-positive
C. Di-negative
D. Di-positive - Formation of vapours from the surface of a liquid is called________________?
A. vapourization
B. evaporation
C. condensation
D. cracking - Which of the following is not a condition for the formation of smog ?
A. sufficient NO
B. sunlight
C. less movement of air
D. winds - Which of the following is used as water disinfectant to avoid the formation of toxic compounds_________________?
A. Cl2
B. O3
C. ClO2
D. both B & C - The complete reduction carboxylic acid results in the formation of________________?
A. Alkyne
B. Alkene
C. Alkane
D. Alcohol - The coloured glassy mass in borax bead test is due to the formation of___________________?
A. metal borate
B. metal meta borate
C. metal boride
D. metal silicate - Hydrogenolysis results in the formation of________________?
A. alkane
B. alkene
C. alkyne
D. aldehydes - The rate of formation of ozone depends on the flux of:
A. visible radiation
B. Ultra violet radiation
C. Infrared radiation
D. Gamma raysSubmitted by: Said wali shah
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