Quiz [1] Introduction and Acid base titration [Dr. Wael Mortada]
In systemic errors, the procedure is
Not accurate and not precise
Not accurate and precise
Accurate and not precise
Accurate and precise
Which of the following is a basic salt
NaCl
NH4Cl
Na2CO3
All of them
Potassium dichromate is a primary standard substance
True
False
During titration of NH4OH against standardized solution of HCl, the end point is acheived at pH
7.0
Less than 7
More than 7
10% (v/v) solution of ethanol in water consists of
10 mL ethanol and 100 mL water
10 mL ethanol and 90 mL water
10 mL water and 90 mL ethanol
10 mL water and 100 mL ethanol
100 ppm solution of an analyte means that one liter of solution contain
100 mg in 100 mL of solution
1 mg in 10 mL of solution
1 mg in 100 mL of solution
100 mg in 10 mL of solution
Identify the conjugate acid in the reaction
Ammonia
Water
Ammonium ion
Hydroxyl ion
On adding NaCl to water, the pH will
decrease
increase
remain constant
One of the following if protophilic solvent
Chloroform
Perchloric acid
Pyridine
Ethanol
Arrhenius defined an acid as
a species that can donate a proton.
a species that can accept a proton
a source of OH- ions in water
a source of H+ ions in water
{"name":"Quiz [1] Introduction and Acid base titration [Dr. Wael Mortada]", "url":"https://www.quiz-maker.com/QWY1PX32K","txt":"In systemic errors, the procedure is, Which of the following is a basic salt, Potassium dichromate is a primary standard substance","img":"https://www.quiz-maker.com/3012/CDN/85-4070617/1.png?sz=1200"}