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Browse complete papersWhat is the common name of ethanoic acid and what is its 5-8% solution in water called?
Tartaric acid and vinegar
Acetic acid and vinegar
Formic acid and brine solution
Butanoic acid and brine solution
Correct answer
Tartaric acid and vinegar
A body starts from rest and covers a distance of 10 metre (m) in 2 seconds (s). It comes back to the starting point in 3 seconds. What is the average velocity of the body?
5 m/s
0 m/s
20 m/s
4 m/s
Correct answer
5 m/s
In the preparation of baking soda, which of the following chemicals reacts with sodium chloride?
Calcium hydroxide and water
Potassium hydroxide and carbon dioxide
Hydrochloric acid
Ammonia, carbon dioxide and water
Correct answer
Calcium hydroxide and water
The main distinguishing feature that separates the plant cell from the animal cell is the presence of ____________.
cell membrane
ribosomes
cell wall
plasma membrane
Correct answer
cell membrane
Electric current in a circuit flows from ________ terminal of the cell to __________ terminal of the cell.
negative; negative
positive; positive
positive; negative
negative; positive
Correct answer
negative; negative
A car starts from a house to a tour destination. If it covers 100 m in each second exactly and reaches back home after 10 h, it is in _____ motion with an average speed of _____.
nonuniform; 360 km/hr
nonuniform; 100 m/s
uniform; 360 m/s
uniform; 360 km/hr
Correct answer
nonuniform; 360 km/hr
Which of the following is correctly matched, regarding the male reproductive system?
Testes - Formation of sperms
Vas deferens - Regulation of the formation of sperms
Prostate gland - Secretion of testosterone hormone
Seminal vesicles - Delivery of sperms
Correct answer
Testes - Formation of sperms
Which of the following organisms are at the first trophic level of the food chain?
Primary consumer
Producers
Secondary consumer
Decomposers
Correct answer
Primary consumer
Select the option that is true regarding the following two statements labelled Assertion and Reason.
Assertion: The chemical properties of CH3OH, C2H5OH, C3H7OH and C4H9OH are all very similar.
Reason: CH3OH, C2H5OH, C3H7OH and C4H9OH are members of homologous series.
Both Assertion and Reason are false.
Both Assertion and Reason are true
Assertion is true but Reason is false.
Assertion is false but Reason is true.
Correct answer
Both Assertion and Reason are false.
Which of the following is NOT a characteristic of a suspension?
It is transparent.
Solute particles settle down over time.
It is a heterogeneous mixture.
It can be separated by filtration.
Correct answer
It is transparent.