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# Allen’s Talent Encouragement Exam Class X Sample Paper 2018 : tallentex.com

Organisation : ALLEN Career Institute – TALLENTEX
Exam : Allen’s Talent Encouragement Exam 2018
Document Type :  Sample /Past Year Papers
Class : X Std
Paper Code: S
Website : https://www.tallentex.com/sample-papers.asp

## Allen’s Talent Encouragement Exam Sample Paper

Sample Question Paper of Allen’s Talent Encouragement Exam 2018 Class X Standard Paper – I & Paper II Question Paper is now available in the official website of ALLEN Career Institute – TALLENTEX COORDINATION CELL.

Related / Similar Question Paper :
Allen’s TALLENTEX Class XI Sample Paper 2018

## Model Questions

Duration : 2 Hrs
Maximum Marks : 320

### Paper – I

Section – A – Physics :
This section contains 15 Multiple Choice Questions. Each question has four choices (1), (2), (3) and (4) out of which ONLY ONE is correct.

1. Assertion : An observer standing on the bank of sea finds that 54 waves are reaching the bank per minute. If the wavelength of waves is 10 m, then their speed will be 9 m/s.

Reason : This follows from v = lf
(1) If both Assertion and Reason are true and Reason is correct explanation of the Assertion.
(2) If both Assertion and Reason are true but Reason is not correct explanation of the Assertion.
(3) If Assertion is true, but the Reason is false.
(4) If Assertion is false, but the Reason is true.

2. A ball is released from height h and another from 2h. The ratio of time taken by the two balls to reach the ground is :
(1) 1: 2
(2) 2 : 1
(3) 2 : 1
(4) 1 : 2

3. The current in the circuit is : 8V 12W 12W 12W
(1) 4A
(2) 2A
(3) 1A
(4) 0.5A

4. In the given figure, the electron enters into the magnetic field. It deflects in which direction ?
(1) +ve x-direction
(2) –ve x-direction
(3) +ve y-direction
(4) –ve y-direction

5. Magnetic field produced in a solenoid depends upon
(1) Number of turns per unit length in coil
(2) Magnitude of current in coil
(3) Material used as core
(4) All of the above

Section-B – Chemistry :
This section contains 15 Multiple Choice Questions. Each question has four choices (1), (2), (3) and (4) out of which ONLY ONE is correct.
16. A sample of pure water irrespective of its source contains hydrogen and oxygen in the ratio of 1 : 8 by mass. This data supports.
(1) Law of conservation of mass
(2) Law of constant proportion
(3) Law of multiple proportion
(4) Law of reciprocal proportion

17. 7.5 g of a gas occupy 5.6 litres of volume at STP. The gas is :-
(1) NO
(2) N2O
(3) CO
(4) CO2

18. The number of electrons present in a-particle is
(1) 2
(2) 1
(3) 3
(4) 0

19. Volume occupied by 4.4g of CO2 is
(1) 2.24 L
(2) 22.4 L
(3) 224 L
(4) None of these

20. Composition of Bauxite is :-
(1) Al2O3
(2) MgSO4·7H2O
(3) Al2O3.2H2O
(4) MgSO4

Section-C – Biology :
This section contains 15 Multiple Choice Questions. Each question has four choices (1), (2), (3) and (4) out of which ONLY ONE is correct.
31. Which of the following is mismatched ?
(1) Medulla oblongata ® Regulate involuntary activities
(2) Hypothalamus ® Appetite & satiety centre, osmoregulation, voluntary movements
(3) Cerebellum ® Equilibrium & posture of body
(4) Spinal cord ® Butterfly shaped gray matter

32. Malaria is a
(1) Chronic disease
(2) Congenital disease
(3) Acute disease
(4) Metabolic disease

33. I. Transpiration and gaseous exchange occur mainly through stomata.
II. Cell wall of guard cells are homogenous in nature.
III. Guard cells are bean shaped in dicots.
The correct statements are
(1) All
(2) Only I
(3) Only I and III
(4) Only II and III

34. Which of the following vessels has more nutrients than others ?
(1) Vein arising from liver
(2) Superior Vena cava
(3) Vein arising from muscles
(4) Vein arising from Kidney

35. The cerebrum wraps around a structure called thalamus, which is
(1) A major coordinating centre for sensory signal only
(2) A major centre for motor signaling
(3) A major coordinating centre for sensory and motor signaling
(4) Not a nervous part of brain

Section-D – Mathematics :
This section contains 15 Multiple Choice Questions. Each question has four choices (1), (2), (3) and (4) out of which ONLY ONE is correct.
46. Which of the following sets of numbers are relative primes
(i) 51, 85 (ii) 26, 65 (iii) 57, 76 (iv) 29, 75
(1) only (ii)
(2) only (iv)
(3) both (i) and (iii)
(4) All the above

47. In a family of husband, wife and a daughter, the sum of the husband’s age, twice the wife’s age and thrice the daughters age is 85; while the sum of twice the husband’s age, 4 times the wife’s age and 6 times the daughter’s age is 170. It is also given that the sum of 5 times the husband’s age, ten times the wife’s age and 15 times the daughter’s age equals 450. The number of possible solutions, in terms of the ages of the husband, wife and the daughter, to this problem is
(1) 0
(2) l
(3) 2
(4) infinitely many

48. If (2a + b) = 12 and ab = 15, then the value of 8a3 + b3 is
(1) 640
(2) 1080
(3) 616
(4) 648

49. ‘Lines are parallel if they do not intersect’ is stated in the form of
(1) an axiom
(2) a definition
(3) a postulate
(4) a proof

50. In the given figure, l1 || l2 and x and y are complementary angles. Find x & y
(1) 50°, 40°
(2) 20°, 70°
(3) 10°, 80°
(4) 30°, 60°

### Paper – II

Paper Code : E
Section-A – Physics :
This section contains 15 Multiple Choice Questions. Each question has four choices (1), (2), (3) and (4) out of which ONLY ONE is correct.
1. In SONAR, we use
(1) Ultrasonic waves
(2) Infrasonic waves
(4) None of these

3. Two wires of same length and material have radii r and 2r. The ratio of their specific resistances is :
(1) 1 : 2
(2) 1 : 1
(3) 1 : 4
(4) 4 : 1

4. If a piece of metal was thought to be magnet, which one of the following observation would offer conclusive evidence :
(1) It attracts a known magnet
(2) It repels a known magnet
(3) Neither (1) nor (2)
(4) Both (1) and (2)

5. In the circuit given below, the percentage change in the total heat dissipated per unit time on closing the switch S is :
(1) 50% increase
(2) 50% decreases
(3) 100% increase
(4) 75% increase

Section-B – Chemistry :
This section contains 15 Multiple Choice Questions. Each question has four choices (1), (2), (3) and (4) out of which ONLY ONE is correct.
16. Gram atomic weight of oxygen is
(1) 16 amu
(2) 16 g
(3) 32 amu
(4) 32 g

17. If 8 ml. of uncombined O2 remain after exploding O2 with 4 ml. of hydrogen, the number of ml. of O2 originally were :
(1) 12
(2) 2
(3) 10
(4) 4

18. Which of the following pairs represent isobars?
(1) 3 4 2He and 2He
(2) 24 25 12Mg and 12Mg
(3) 40 40 19 K and 20Ca
(4) 39 40 19K and 20Ca

19. Number of molecules in 100 ml each of O2, NH3 and CO2 at STP are in the order
(1) CO2 < O2 < NH3
(2) NH3 < O2 < CO2
(3) NH3 = CO2 < O2
(4) NH3 = CO2 = O2

20. Identify the incorrect equations representing thermite reduction :
(1) Cr2O3 + 2Al ® Al2O3 + 2Cr
(2) 3Mn3O4 + 8Al ® 4Al2O3 + 9Mn
(3) Fe2O3 + 2Al ® Al2O3 + 2Fe
(4) None of these

21. If the pH of an aqueous solution of NaOH is 11, then the concentration of hydroxide ions in mol/L will be
(1) 11
(2) 10–11
(3) 3
(4) 10–3

22. A dilute solution of sodium carbonate was added to two test tubes one containing dil. HCl (A) and the other containing dil. NaOH (B). The correct observation was
(1) a brown coloured gas liberated in test tube A
(2) a brown coloured gas liberated in test tube B.
(3) a colourless gas liberated in test tube A
(4) a colourless gas liberated in test tube B.

23. The pH of a 10–8 M NaOH solution is:
(1) 8
(2) 6
(3) 7.05
(4) 6.75

24. The most abundant metal on the earth’s crust is
(1) Aluminium
(2) Copper
(3) Silicon
(4) Oxygen

25. The product obtained on passing excess carbondioxide through lime water is –––
(1) CaCO3
(2) Ca(HCO3)2
(3) CaHCO3
(4) Ca2CO3

Section-C – Biology :
This section contains 15 Multiple Choice Questions. Each question has four choices (1), (2), (3) and (4) out of which ONLY ONE is correct.
31. The rhythmic pattern of breathing is established by
(1) Cerebrum
(2) Cerebellum
(3) Reflex-action
(4) Medulla oblongata

32. Vector of dengue virus is–
(1) Male Anopheles
(2) Female Anopheles
(3) Male Aedes
(4) Female Aedes

34. Choose the schematic diagram which properly represents pulmonary circulation in humans.
(1) Right ventricle Deoxygenated blood ¾¾¾¾¾® Lungs Oxygenated blood ¾¾¾¾® Left auricle
(2) Right ventricle Oxygenated blood ¾¾¾¾® Lungs Deoxygenated blood ¾¾¾¾¾® Left auricle
(3) Left auricle Oxygenated blood ¾¾¾¾® Lungs Deoxygenated blood ¾¾¾¾¾® Right ventricle
(4) Left auricle Deoxygenated blood ¾¾¾¾¾® Lungs Oxygenated blood ¾¾¾¾® Right ventricle

35. Which of these statements about hypothalamic-releasing hormones is true ?
(1) They are secreted into blood capillaries.
(2) They are transported by portal veins to the anterior pituitary.
(3) They stimulate the secretion of specific hormones from the anterior pituitary.
(4) All of the above are true.

36. Which of the following is not the function of kidney?
(1) Ultrafiltration
(2) Reabsorption
(3) Secretion
(4) Urea formation

37. The bacterial disease cholera is accompanied by
(1) Peptic ulcers
(2) Rapid loss of fluid from the intestine
(3) Infection of heart muscles
(4) Rose spots

38. The main function of loop of Henle is the reabsorption of water from the contents of renal tubules.
In which of the following will the loop of Henle be poorly developed or even absent ?
(1) Desert mouse
(2) Carnivorous bird
(3) Freshwater fish
(4) Desert Lizard

39. Which one of the following is the most appropriate conclusion for this investigation?
(1) With an increase in air pollution there is an increase in the number of lichen species
(2) With an increase in air pollution there is a decrease in the number of lichen species
(3) With a decrease in the lichen population there is an increase in the amount of air pollution
(4) With a decrease in the lichen population there is a decrease in the amount of air pollution

40. During normal functioning of muscles and during aerobic respiration in yeast, the end products formed respectively are
(1) CO2 + ATP; Ethanol + CO2
(2) Lactic acid + ATP ; Ethanol + ATP
(3) Lactic acid + ATP; CO2 + ATP
(4) CO2 + H2O + ATP; CO2 + H2O + ATP