What is the value of carbonate hardness of water sample if 100 mL of it took
What is the value of carbonate hardness of water sample if 100 mL of it took 5 mL of 0.09 N HCl solution ? (Molecular weight of Na₂CO₃ = 106)
Options
(a) 4.50 […]
What is the value of carbonate hardness of water sample if 100 mL of it took 5 mL of 0.09 N HCl solution ? (Molecular weight of Na₂CO₃ = 106)
Options
(a) 4.50 […]
The offsprings produced through which of the following process are not exactly similar to their parents?
Options
(a) parthenogenesis (b) asexual reproduction (c) sexual reproduction (d) dizygotic twins
Correct Answer:
sexual reproduction
Explanation: […]
In Delhi, there is a large gap between birth & death rate. This shows that Delhi has a population of
Options
(a) school-going children (b) more old persons (c) middle-aged persons (d) adult […]
The relationship between two organisms where one receives benefit at the cost of the other is known as
Options
(a) parasitism (b) predation (c) scavenging (d) symbiosis
Correct Answer:
parasitism & predation
Explanation: […]
Pyrethrin is got from
Options
(a) Azadirachta indica (b) Chrysanthemum cinerariifolium (c) Urtica dioica (d) Tagetes erecta
Correct Answer:
Chrysanthemum cinerariifolium
Explanation:
No explanation available. Be the first to write the explanation for […]
Terylene is used for making
Options
(a) sails (b) fabrics (c) seat belts (d) all of these
Correct Answer:
all of these
Explanation:
No explanation available. Be the first to write the explanation […]
Which of the following shows electrical conduction?
Options
(a) Sodium (b) Potassium (c) Diamond (d) Graphite
Correct Answer:
Graphite
Explanation:
No explanation available. Be the first to write the explanation for this question […]
In an isobaric process, the ratio of heat supplied to the system (dQ) and work done by the system (dW) for diatomic gas is
Options
(a) 1:1 (b) 7:2 (c) 7:5 (d) 5:7
The indicator used in the titration of iodine against sodium thiosulphate is
Options
(a) starch (b) K₃ [Fe(CN)₆] (c) K₂CrO₄ (d) potassium
Correct Answer:
starch
Explanation:
No explanation available. Be the first to […]
The chloramphenicol is an example of
Options
(a) antibiotic (b) sulpha drug (c) antiseptic (d) antipyretic
Correct Answer:
antibiotic
Explanation:
Chloramphenicol is and antibiotic, which is effective against a variety of diseases. This […]
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