Vinegar is an aqueous solution of?
Hydrochloric acid
ethanedioc acid
ethanoic acid
hydrofluoric acid
Correct answer is C
Vinegar is an aqueous solution of acetic acid and trace compounds that may include flavorings.
0.05
0.10
2.60
2.80
Correct answer is A
(mass / molar mass) X (1000 / vol )
(0.28 / 56.0) X (1000 / 100 )
= 2.8 / 56
= 0.05 mol\dm\(^3\)
The properties of a good primary standard solution include the following except?
High molecular mass
low molecular mass
high degree of purity
readily available
Correct answer is B
Properties of a good standard solution
The name of the compound CH\(_3\)C(CH\(_3\))\(_2\)CH\(_2\)CH\(_2\)CH\(_3\)
2 - methyl butane
2,2 - dimethyl butane
2 - methyl pentane
2,2 - dimethyl pentane
Correct answer is D
- The longest chain has five carbon atoms i.e PENT
- with two methyl attached to the second carbon atom
Which of the following compounds has coordinate bonds in its structure?
Al\(_2\)Cl\(_6\)
MgCl\(_2\)
AgCl
NaCl
Correct answer is A
Aluminum chloride (Al2Cl6) has coordinate dative bonding