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mnsoomro
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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…
Which one of the following sets consists of all coinage metals ?
a. Cu Hg Au B. Cu Ag Au C. Ag Au Hg D. Cu Fe Au Submitted by :- Jamil…
Non-metals usually form _________________ oxides?
a. Acidic B. Amphoteric C. Neutral D. All of the above Submitted by :- Jamil Ahmed
Inner transition elements are called _________________?
A. Lanthanides B. Actinides C. Rare earth metals D. All Submitted by :- Jamil Ahmed
In modern periodic table all the elements are arranged in ascending order of__________________?
A. Valency C. Atomic number B. Atomic mass …
Elements with similar chemical properties appear in the_________________?
A. Same family B. Same period C. p block elements D. Right upper corner Submitted by :- Jamil Ahmed
In which of the following pairs are elements belonging to the same group ?
A. Boron & Beryllium B. Nitrogen & Phosphorous C. Magnesium & Aluminium D. Gallium & Helium Submitted by :- Jamil…
Amphoteric oxides are those which possess ____________ properties?
A. Acidic B. Basic C. Acidic and basic D. Neutral and acidic Submitted by :- Jamil Ahmed
Modern periodic table has been divided in ___________ blocks?
A. 2 B. 4 C. 8 D. 7 Submitted by :- Jamil Ahmed
Seventh period contains _________________ normal elements ?
A. 2 B. 4 C. 6 D. 8 Submitted by :- Jamil Ahmed