Element that have same number of neutrons are called__________?
Element that have same number of neutrons are called__________?A. isotope
B. isobar
C. isotone
D. None of these
B. isobar
C. isotone
D. None of these
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18g glucose is dissolved in 90g water the relative lowering in vapour pressure is equal to ___________________?
18g glucose is dissolved in 90g water the relative lowering in vapour pressure is equal to ___________________?A. 8
B. 5.1
C. 6
D. one/fifty oneWhich of the following is not characteristics of reversible reaction__________________?
Which of the following is not characteristics of reversible reaction__________________?A. whole amount of reactant does not change into product
B. chemical equilibrium is established
C. a catalyst changes the direction of reaction
D. rate of forward reaction decreases as reaction proceedsThe common thing in phthalic acid and oxalic acid is that both are_________________?
The common thing in phthalic acid and oxalic acid is that both are_________________?A. Aromatic
B. Dicarboxylic
C. Hydrocarbons
D. Strong acidsAn alcohol which can be prepared by fermentation is_________________?
An alcohol which can be prepared by fermentation is_________________?A. CH3OH
B. C3H7OH
C. CH3 – CH2 – OH
D. C6H5OHWhich one of the following pairs shown diagonal relationship in the periodic table ?
Which one of the following pairs shown diagonal relationship in the periodic table ?A. Sodium and Lithium
B. Lithium and magnesium
C. Lithium and beryllium
D. Boron and BerylliumIf steel is heated to a temperature well below red heat and is then cooled slowly, the process is called_________?
If steel is heated to a temperature well below red heat and is then cooled slowly, the process is called_________?A. Annealing
B. Quenching
C. Tempering
D. Nitriding