I. Treatment of cancer II. Detection of leakages in water mains III. Detection of the…
I. Treatment of cancerII. Detection of leakages in water mainsIII. Detection of the ages of ancient toolsIV. Preparation…
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What is the valence shell electron configuration of the element with atomic number 17?
What is the valence shell electron configuration of the element with atomic number 17? A. 1s2 2s2 2p6…
The density of a certain gas is 1.98gdm-3 at s.t.p. What is the molecular mas…
The density of a certain gas is 1.98gdm-3 at s.t.p. What is the molecular mas of the gas?…
A heterogenous mixture can be defined as any mixture
A heterogenous mixture can be defined as any mixture A. of a solute nd a solvent B. whose…
The pressure of 100cm3 of oxygen at 35oC is 750mmHg. What will be the volume…
The pressure of 100cm3 of oxygen at 35oC is 750mmHg. What will be the volume of gas if…
An element wil readily form an electrovalent compound if it electron configuration is
An element wil readily form an electrovalent compound if it electron configuration is A. 2, 8, 1 B.…
Sugar is separated from its impurities by
Sugar is separated from its impurities by A. precipitation B. crystallization C. distillation D. evaporation Correct Answer: Option…
The component of an atom that contributes least to its mass is the
The component of an atom that contributes least to its mass is the A. proton B. nucleus C.…
The shape of the hydrocarbon compound CH4 is
The shape of the hydrocarbon compound CH4 is A. square planar B. planar C. linear D. tetrahedral Correct…
Which of these properties gives a solid its definite shape?
Which of these properties gives a solid its definite shape? A. strong intermolecular attraction B. high melting point…