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POLYCET (2022) - 12
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మీకు ఏవైనా కీ లోపాలు దొరికితే లోపాలు మాకు తెలియజేయడానికి వెనుకాడవద్దు.
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Question 1 of 30
1. Question
A and B are the only two outcomes of an event and p(A) = 0.32 . then the value of p(B) would be………..
a. 0.92
b. 0.98
c. 0.12
d. 0.68 -
Question 2 of 30
2. Question
The probability of getting a bad egg in a lot of 400 eggs is 0.035 . the number of bad eggs in the lot is
a. 14
b. 7
c. 21
d. 29 -
Question 3 of 30
3. Question
A bag contains 10 red flags and some green flags . If the probability of drawing a green flag is thrice that of drawing a red flag . Then the number of green flags in the bag is
a. 30
b. 10
c. 60
d. 40 -
Question 4 of 30
4. Question
What is the probability of getting a head on throwing an unbiased coin ?
a. 1/2
b. 0
c. 1
d. -1 -
Question 5 of 30
5. Question
From 30 tickets marked with numbers 2 to 31 . One ticket is drawn at random . What is the probability that it is a multiple of 7 ?
a. None
b. 11/30
c. 2/15
d. 1/2 -
Question 6 of 30
6. Question
A letter of English alphabet is chosen at random . The probability that the letter is a consonant is……
a. 21/26
b. 5/26
c. 1/26
d. 25/26 -
Question 7 of 30
7. Question
Which of the following cannot be the experimental probability of an event ?
a. 0.3
b. 1/2
c. 20%
d. 5/2 -
Question 8 of 30
8. Question
If 1 calculate the probability of an even as -0.5 then
a. The probability of not happening is 0.5
b. I made a mistake
c. The event is not going to happen
d. The probability of happening is 0.5 -
Question 9 of 30
9. Question
The probability that the month of April has exactly 5 Mondays is ?
a. 2/7
b. 5/7
c. 3/7
d. 4/7 -
Question 10 of 30
10. Question
The number of non-face cards in a deck of playing cards is….
a. 60
b. 40
c. 70
d. 80 -
Question 11 of 30
11. Question
Soaps are formed by the saponification of
a. Simple esters
b. Carboxylic acids
c. Glycerides
d. Alcohols -
Question 12 of 30
12. Question
Nano tubes are discovered by
a. Wohler
b. koble
c. Wurtz
d. Sumio lijima -
Question 13 of 30
13. Question
The carboxylic acid which is used as a preservative in preparation of pickles is
a. Propanoic acid
b. Ethanoic acid
c. Methanoic acid
d. Butanoic acid -
Question 14 of 30
14. Question
Combustion of hydrocarbon is generally accompanied by the evolution of
a. Heat
b. Light
c. Heat and Light
d. Electric current -
Question 15 of 30
15. Question
Which of the following is called absolute ( 100 % ) alcohol ?
a. Gasohol
b. Ethanal
c. Ethane
d. Ethanoic acid -
Question 16 of 30
16. Question
The correct IUPAC name of compound with molecular formula(CH3)3CCH3 is
a. Pentane
b. 1 , 1 , 1 – Trimethyl ethane
c. 2 , 2 – Dimethyl propane
d. Neopentane -
Question 17 of 30
17. Question
The first member of homologous series among alkynes is
a. Ethane
b. Ethanol
c. Ethyne
d. Ethene -
Question 18 of 30
18. Question
Which of the following gives low concentrated solutions when it is put in water ?
a. Soap
b. Alcohol
c. Micelle
d. Ester -
Question 19 of 30
19. Question
The soap molecule has
a. None
b. Both head and tail are hydrophobic
c. hydrophobic head and hydrophilic tail
d. Hydrophilic head and a hydrophobic tail -
Question 20 of 30
20. Question
Which of the following are compounds ?
a. Plaster of paris
b. None
c. Both
d. Common salt -
Question 21 of 30
21. Question
Amylase converts carbohydrates in this form
a. Sucrose
b. Maltose
c. Galactose
d. Glucose -
Question 22 of 30
22. Question
The proper order of conducting experiment to test the starch in leaves.
Selection of a potted plant
Pouring iodine drops on the leaf that is kept in petri dish
Taking methylated spirit into the test tube
Heating the leaf in test tube for removal of chlorophyll
a. 4,3,1,2
b. 4,1,3,2
c. 1,3,2,4
d. 1,3, 4, 2 -
Question 23 of 30
23. Question
In this process broken down to release energy
a. Photosynthesis
b. Respiration
c. Excretion
d. Circulation -
Question 24 of 30
24. Question
In most plants gaseous exchange takes place through
a. Stomata
b. Root
c. Air spaces
d. Guard cells -
Question 25 of 30
25. Question
Closed type of circulatory system is seen in
a. Annelids
b. Echinoderms
c. Cephalopod molluscs
d. All -
Question 26 of 30
26. Question
The vitamin responsible for the clotting of the blood is
a. Vitamin K
b. Vitamin E
c. Vitamin C
d. Vitamin D -
Question 27 of 30
27. Question
Which of the following is an anti malarial drug
a. Quinine
b. Morphine
c. Cocaine
d. None -
Question 28 of 30
28. Question
Excretory structures appear for the first time in flat worms called as
a. Flame cells
b. Kidneys
c. Water vascular system
d. Canal system -
Question 29 of 30
29. Question
In our body involuntary actions controlled by
a. Medulla oblongata
b. Hypothalamus
c. Pons varoli
d. Cerebellum -
Question 30 of 30
30. Question
Which controls the peristaltic movements of a alimentary canal?
a. Cerebrum
b. Cerebellum
c. Pons
d. Medulla