POLYCET (2022) - 12
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మీకు ఏవైనా కీ లోపాలు దొరికితే లోపాలు మాకు తెలియజేయడానికి వెనుకాడవద్దు.
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A and B are the only two outcomes of an event and p(A) = 0.32 . then the value of p(B) would be………..
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 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
What is the probability of getting a head on throwing an unbiased coin ?
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 letter of English alphabet is chosen at random . The probability that the letter is a consonant is……
Which of the following cannot be the experimental probability of an event ?
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
The probability that the month of April has exactly 5 Mondays is ?
The number of non-face cards in a deck of playing cards is….
Soaps are formed by the saponification of
a. Simple esters
b. Carboxylic acids
Nano tubes are discovered by
d. Sumio lijima
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
Combustion of hydrocarbon is generally accompanied by the evolution of
c. Heat and Light
d. Electric current
Which of the following is called absolute ( 100 % ) alcohol ?
d. Ethanoic acid
The correct IUPAC name of compound with molecular formula(CH3)3CCH3 is
b. 1 , 1 , 1 – Trimethyl ethane
c. 2 , 2 – Dimethyl propane
The first member of homologous series among alkynes is
Which of the following gives low concentrated solutions when it is put in water ?
The soap molecule has
b. Both head and tail are hydrophobic
c. hydrophobic head and hydrophilic tail
d. Hydrophilic head and a hydrophobic tail
Which of the following are compounds ?
a. Plaster of paris
d. Common salt
Amylase converts carbohydrates in this form
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
d. 1,3, 4, 2
In this process broken down to release energy
In most plants gaseous exchange takes place through
c. Air spaces
d. Guard cells
Closed type of circulatory system is seen in
c. Cephalopod molluscs
The vitamin responsible for the clotting of the blood is
a. Vitamin K
b. Vitamin E
c. Vitamin C
d. Vitamin D
Which of the following is an anti malarial drug
Excretory structures appear for the first time in flat worms called as
a. Flame cells
c. Water vascular system
d. Canal system
In our body involuntary actions controlled by
a. Medulla oblongata
c. Pons varoli
Which controls the peristaltic movements of a alimentary canal?