Question
What will be the concentration of nitric acid in mole
per litre in a sample which has density 1.41 gm L⁻¹ and the mass percent of nitric acid if being 69%?Solution
1. Mass of 1L solution = 1410g 2. Mass of HNO₃ = 1410 × 0.69 = 972.9g 3. Moles of HNO₃ = 972.9/63 = 15.44 4. Molarity = 15.44 mol/L
Bacteria in which growth phase are more baro-sensitive
Match the preservative (group-1) with their examples (Group-2)
The spoilage of food is primarily determined by…, … &…
...........is the main milk protein & present in milk in ….form.
Biological value of Egg is…
Match the Enzyme (Group-1) with their industrial application (Group-2)
Which of the following is/are Promoters of oxidation
a) Heat.
b) Light.
c) Degree of unsaturation
Common organism, which produces enterotoxin, is
Which is/are Food-grade antioxidants
a) Propyl gallate
b) tertiary butylhydroquinone
c) butylated hydroxy toluene...
In intelligent food packaging which of the following is not an internal indicator.
