List of practice Questions

Arrange the following in decreasing order of nucleophilicity:
(A). H₂O
(B). NH₃
(C). OH⁻
(D). NH₂−
Choose the correct answer from the options given below:

Arrange the following in the order of increasing basic strength:
(A). NH₃
(B). PH₃
(C). AsH₃
(D). BiH₃
Choose the correct answer from the options given below:

Arrange the following oxoacids in the order of their increasing acidic strength:
(A). HOCl
(B). HOCl₂
(C). HOCl₃
(D). HOCl₄
Choose the correct answer from the options given below:

Better quality chhana is prepared from:

Which of the following element is NOT present in milk:

The dual-purpose breed of cow is:

The native state of Surati buffalo breed is:

Buffalo population in India is:

Arrange the following breeds of buffaloes according to decreasing order of their lactation yield:
(A) Jaffarabadi
(B) Mehsana
(C) Bhadawari

At birth, calves will normally have....... temporary incisors ready to appear through the gums of the jaw:

The following reaction is used for the detection of ...... adulteration in milk sample:
Milk sample + HCl + powder Resorcinol \(\xrightarrow{\text{boil for 5 min. in water bath}}\) Red coloration

The following reaction is used for the detection of ...... adulteration in milk sample:
Milk sample + \( \text{AgNO}_3 \) + drop of \( \text{K}_2\text{Cr}_2\text{O}_7 \rightarrow \) Yellow coloration

How will you detect the presence of urea in milk?

Which of the following is not a natural inhibitory substance found in raw milk?

Lactococcus lactis ssp. lactis produces which of the following antibacterial substances during fermentation:

The most important bacteriocins used as bio-preservatives include:

The pH-neutral, water-soluble, low molecular weight substance, which is non-bacteriocin and resistant to nuclease, protease, and lipolytic enzymes, is:

The main end product (metabolite) of homofermentative lactic acid bacterial cultures is ...... during milk fermentation is:

Which of the following herbs are NOT used in the preservation of milk and milk products?

The effective pH range for benzoic acid used as a chemical preservative in milk and milk products is:

Modified Atmosphere Packaging increases shelf life by:

In Modified Atmosphere Packaging ....... gases are used:

Which of the following is NOT an advantage of plastics in the dairy industry?