The solvent used for removing grease stain is
The solvent used for removing grease stain is A. turpentine B. ammonia solution C. ethanol D. solution of…
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In a water body, too much sewage leads to
In a water body, too much sewage leads to A. a decrease in the temperature of the water…
Steam changes the colour of anhydrous cobalt (ll) chloride from
Steam changes the colour of anhydrous cobalt (ll) chloride from A. white to red B. blue to white…
An example of a hygroscopic substance is
An example of a hygroscopic substance is A. CuO (S). B. MgCL2(S). C. CaCL2(S). D. NaOH(S). Correct Answer:…
The bond formed between two elements with electron configurations 1s2 2s2 2p6 3s2 and 1s2…
The bond formed between two elements with electron configurations 1s2 2s2 2p6 3s2 and 1s2 2s2 2p4 is…
The constituent of air that acts as a diluent is
The constituent of air that acts as a diluent is A. nitrogen B. carbon (IV) oxide C. noble…
The shape of the carbon (lV) oxide molecule is
The shape of the carbon (lV) oxide molecule is A. pyramidal B. linear C. angular D. tetrahedral Correct…
Which of the following molecules is held together by hydrogen bond?
Which of the following molecules is held together by hydrogen bond? A. CH4 B. HBr C. H2SO4 D.…
The presence of an impurity in substance will cause the melting point to
The presence of an impurity in substance will cause the melting point to A. be zero B. reduce…
What volume of carbon (ll) oxide is produced by reacting excess carbon with 10 dm3…
What volume of carbon (ll) oxide is produced by reacting excess carbon with 10 dm3 of oxygen? A.…