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2051.

Two similar pea plants are growing in two different islands separated by a vast ocean. The phenomenon of geographical isolation will (1) not be seen as the plants get self pollinated (2) be seen as the plants are growing in isolated regions (3) not be seen as the plants get pollinated by ocean water currents (4) be seen as the plants do not get pollinated and reproduces asexually

Answer»

(1) not be seen as the plants get self pollinated 

Two similar pea plants are growing in two different islands separated by vast ocean. The phenomenon of geographical isolation will not be seen as the plants get self pollinated.

2052.

DDT is non-biodegradable chemical when it enters food chain it gets accumulated in each tropical level. The phenomenon is called as (1) Eutrophication (2) Chemical amplification (3) Biomagnification (4) Chemical magnification

Answer»

(3) Biomagnification 

DDT is non-biodegradable when it enters in food chain it gets accumulated in each trophic level. This phenomenon is called Biomagnification.

IDK

Idk idk idk 


2053.

Eukaryotic organisms have different levels of organization. Select the combination where the levels are arranged in the descending order.1. DNA, chromosome, cell, nucleus, tissue2 Tissue, cell, nucleus, chromosome, DNA3. Nucleus, cell, DNA. chromosome, tissue4. Tissue, cell, chromosome, nucleus, DNA

Answer»

2. Tissue, cell, nucleus, chromosome, DNA

2054.

In the flowering plants sexual reproduction involves several events beginning with the bud and ending in a fruit. These events are arranged in four different combinations. Select the combination that has the correct sequence of events.1. Embryo, zygote, gametes, fertilization. 2. Gametes, fertilization, zygote, embryo.3. Fertilization, zygote, gametes, embryo. 4. Gametes, zygote, embryo, fertilization.

Answer»

Correct option: 2. Gametes, fertilization, zygote, embryo.

2055.

In pea plants, Round (R) and Yellow (Y) features of seeds are dominant over wrinkled (r) and green (y) features. In a cross between two plants having the same genotypes (RrYy) the following genotypic combinations of offspring are noticed.A- RrYYB- RryyC- rrYyD- rryyThe phenotypic features of A, B. C, and D are given below in an order in four combinations. Select the correct combination of characters that corresponds to the genotypes.1. Round & yellow; round & green; wrinkled & yellow; wrinkled & green.''2. Round & green; wrinkled & yellow; wrinkled & green; round & yellow.3. Wrinkled & green; round & yellow; wrinkled & yellow; round & green.4. Wrinkled & yellow; round & green; wrinkled & yellow; round & yellow.

Answer»

1. Round & yellow; round & green; wrinkled & yellow; wrinkled & green.''

2056.

For going to a city B from city A, there is a route via city C such that AC⟂CB. AC = 2x km and CB = 2 (x+7) km. it is proposed to construct a 26km highway which directly connects the two cities A and B . Find how much distance will be saved in reaching city B from city A after the construction of the highway.1. 5 km 2. 6 km 3. 8 km 4. 13 km

Answer»

Correct option is 3. 8 km

2057.

What will be the difference between simple interest and compound interest on sum of Rs 6000 in 2 years at the rate of interest of 5% p.a. (1) Rs 15 (2) Rs 20 (3) Rs 30 (4) Rs 10

Answer»

(1) Rs 15

cl = 6000 (1 + 5/100) - 6000

= 6000 x 441/400 - 6000

= 615

si = 6000 x 5 x 2 / 100 = 600

∴ difference = Rs 15

2058.

If \(\frac{x^2}{\text{by}+\text{cz}}=\frac{y^2}{\text{cz}+\text{ax}}=\frac{z^2}{\text{ax}+\text{by}}\) = 2 , the value of \(\frac{\text{c}}{\text{2c}+\text{z}}+\frac{b}{\text{2b}+\text{y}}+\frac{a}{\text{2a}+x}\) is(a) 2 (b) 1/2 (c) 4 (d) 1/4

Answer»

Correct option is (b) 1/2 

2059.

The selling price of 5 articles is the same as the cost price of 3 article. The gain or loss percent is (1) 25% gain (2) 25% gain (3) 40% loss (4) 33.33% loss

Answer»

(3) 40% loss

SP of 5 = CP of 3 

Let CP of 1 be Re 1 

SP of 5 = 3

CP of 5 = 5

⇒ Loss of 5 = 2

⇒ Loss % = 2/5 x 100 = 40% loss

2060.

There are 6 defective items in a sample of 20 items. One items is drawn at random. The probability that it is a non – defective item is: (A) 7/10 (B) 0 (C) 3/10 (D) 2/3

Answer»

Correct option is (A) 7/10

2061.

The ratio of in-radius and circum-radius of a square is (1) 1:2 (2) 1:√2  (3) 1:3 (4) 1:√3

Answer»

Correct option is (2) 1:√2  

2062.

Total percentage by which 5/7 of 122 is greater than 4/5 of 70 will be (1) 42% (2) 30% (3) 24% (4) 36%

Answer»

Correct option is (4) 36%

2063.

Four congruent triangular corners are cut off a rectangle of dimension 11cm × 13cm. The resulting Octagon has eight edges of equal length. The length of the edge of octagon is (1) 7cm (2) 3cm (3) 4cm (4) 8cm

Answer»

Correct option is (2) 3cm

2064.

A cuboid of unit length, unit breadth and of height 10 units is cut into 10 cubical pieces of edge of 1 unit length each. The total surface area of these ten cubes will be (1) 20 sq. units (2) 40 sq. units (3) 42 sq. units (4) 60 sq. units

Answer»

(4) 60 sq. units

2065.

There are 39 students in a class. In sitting arrangement, the position of Suresh is Seventh position before Ashok. If position of Ashok is 17th from the last. Then what is the position of Suresh from the beginning. (1) 14th (2) 15th (3) 16th (4) 24th

Answer»

Correct option is (3) 16th

2066.

Read the following information carefully and answer the question given below, (i) A, B, C, D, E, F and G are sitting around a circle and facing at the center. (ii) ‘G’ is second to the left of ‘C’ , who is to the immediate left of ‘F’ (iii) ‘A’ is third to the left of ‘E’ (iv) ‘B’ is between ‘D’ and ‘E’1. Which is the following is false? (1) 'A' is fourth to the right of 'E' (2) 'G' is to the immediate right of 'D' . (3) 'F' is fourth to the right of 'D' . (4) ‘B' is to the immediate left of 'D' . 2. Which of the following is true? (1) 'C' is fourth to the right of 'B'. (2) 'A' is to the immediate right of 'G'. (3) 'D' is second to the left of 'E' . (4) 'B' is to the immediate left of 'D' 3. Which of the following pairs is the first person sitting to the immediate left of the second person? (1) BE (2) CA (3) GD (4) DG 4. Which of the following has the middle person sitting between the remaining two? (1) FCE (2) EFB (3) DEB (4) None of these 5. Which of the following is the position of 'F' ? (1) Fourth to the right of 'D' (2) To the immediate left of 'C' (3) Between 'A' and 'E' (4) None of these

Answer»

1. (4) ‘B' is to the immediate left of 'D' .

2. (1) 'C' is fourth to the right of 'B'.

3. (4) DG

4. (4) None of these

5. (1) Fourth to the right of 'D'

2067.

In each of the following questions, four group of words/letters are given. Three of them are alike in some manner, while one is different. Find the odd-one-out and mark it on your answer-sheet as directed.(1) FLRXD (2) ECGSY (3) JPVBH (4) NTZFL

Answer»

Correct option is (2) ECGSY

2068.

In the given question, four pairs of words are given out of which three pairs of words bears a certain relationship. Choose the pair in which the words are differently related ? (1) Forest – Elephant (2) River – Crocodile (3) Passenger- Luggage (4) Class - Student

Answer»

(3) Passenger- Luggage

2069.

Three words are given in this question which have something in common among themselves. Out of the four given alternatives, choose the most appropriate description about these three words. DELHI: AGRA: MATHTURA (1) They have been the Capitals of the Country. (2) They have exquisite temples. (3) They have religious background. (4) They are situated on the bank of river Jamuna.

Answer»

(4) They are situated on the bank of river Jamuna.

2070.

In the given question, four pairs of words are given out of which three pairs of words bears a certain relationship. Choose the pair in which the words are differently related? (1) Shoe : Leather (2) Iron : Axe (3) Table : Wood (4) Shirt : Fabric

Answer»

Correct option is (2) Iron : Axe

2071.

In each of the following questions, four group of words/letters are given. Three of them are alike in some manner, while one is different. Find the odd-one-out and mark it on your answer-sheet as directed.(1) ZGPKU (2) FRGSP (3) NEXFL (4) LANCP

Answer»

Correct option is (3) NEXFL

2072.

In each of the following questions, four group of words/letters are given. Three of them are alike in some manner, while one is different. Find the odd-one-out and mark it on your answer-sheet as directed. (1) Medium (2) Average (3) Mediocre (4) Terrible

Answer»

Correct option is (4) Terrible

2073.

In which year, consumer protection act was enacted? (1) 1986 (2) 1988 (3) 1985 (4) 1987

Answer»

Correct option is (1) 1986

2074.

Which famous pass, between India and China was reopened for the trade after 44 years? (A) Nathu La (B) Shipki La (C) Jelep La (D) Karakoram

Answer»

Correct option is (A) Nathu La

2075.

Match the followingColumn – IColumn – II(A)Oviparous(i)Tadpole of Adult(B)Metamorphosis(ii)Birds(C)Embryo(iii)Fertilization outside the body(D)External Fertilization(iv)Developed Zygote(1) A → ii, B → i , C → iv , D → ii (2) A → iv, B → iii, C → ii, D → i (3) A → i, B → ii, C → iii, D → iv (4) A → iii, B → ii, C → iv, D → I

Answer»

(1) A → ii, B → i , C → iv , D → ii 

2076.

The length of a arc of a sector of angle θ of circle with radius r is :(A) θ / 180 x πr2(B) θ / 360 x πr2(C) θ / 180 x πr(D) θ / 360 x πr

Answer»

Correct option is (C) θ / 180 x πr

2077.

A verticle pole of length 6 m casts a shadow 4 m long on the ground and at the same time a tower casts a shadow 28 m long, then the height of the tower is : (A) 28 m (B) 48 m (C) 53 m (D) 42 m

Answer»

Correct option is (D) 42 m

2078.

If 13 + 23 + ….. + 103 = 3025 then 4 + 32 + 108 + … + 4000 is equal to (1) 1200 (2) 12100 (3) 12200 (4) 12400

Answer»

Correct answer: (2) 12100

take 4 common from the question 

we get 

4 [ 13 +23+33 +......... + 103

now from given data 

13+23+33+.........+10= 3025

Now , Ans = 4 × 3025 = 12100

Correct option is (2) 12100

2079.

What is the molecular formula of silver glance? (a) Ag2S (b) AgCl (c) CaCO3 (d) Al2O3

Answer»

Correct option is (a) Ag2S

2080.

Who discovered y -rays? (a) Rutherford (b) Thomson (c) Willard (d) Dalton

Answer»

 Correct option is (c) Willard

2081.

Which chemical is formed when non metallic oxides react with water? (a) Metal (b) Base (c) Minerals (d) Acid

Answer»

Correct option is (d) Acid

2082.

Electron is invented by (A) J.J. Thomson (B) Dalton (C) Niels Bohr (D) None of the above

Answer»

(A) J.J. Thomson

2083.

The maximum number of electrons in a shell can be show by (A) 2n2 (B) 2n3 (C) 2n2 + 1 (D) None of the above

Answer»

Correct option is (A) 2n2

2084.

Distribution of electrons is carbon is as follow (A) 2, 4 (B) 2, 2, 2 (C) 4, 2 (D) None of the above

Answer»

(A) 2, 4

Atomic number of C is 6 so its electronic configuration will be 2, 4

2085.

A number when divided by 6, gives remainder 2 then what will be the remainder if square of that number is divided by 6.(1) 1 (2) 2 (3) 3 (4) 4

Answer»

 Correct option is (4) 4

2086.

Find the value of \(0.\overline{7}+\) \(2.\overline{7}\,?\)(1) \(3.\overline{4}\)(2) \(2.7\overline{7}\)(3) \(3.\overline{6}\)(4) \(3.\overline{5}\)

Answer»

 Correct option is (4) \(3.\overline{5}\)

2087.

In the following four words. Which word will come third in the English dictionary? (A) Fallible (B) Faithfully (C) False (D) Follow

Answer»

Correct option is (C) False

2088.

During the period of Russian Revolution the Russian rules was (a) Czar Alexander – I (b) Czar Alexander – II (c) Czar Nicholas - I (d) Czar Nicholas – II

Answer»

(d) Czar Nicholas – II

2089.

Who was the founder of Bengal Chemicals? (A) J. C. Bose (B) P. C. Ray (C) M. L. Sarkar (D) None of these

Answer»

Correct option is (B) P. C. Ray

2090.

In the adjoining figure AB = BC , BD = CD and ∠BAC = 37° then what will be the value of x?(1) 320° (2) 740° (3) 106° (4) 34°

Answer»

Correct option is (1) 320° 

2091.

Which of the following words will come third in the English dictionary? (A) Reconcile (B) Reconstruct (C) Reconsider (D) Reconnoitre

Answer»

(C) Reconsider  

2092.

What will be in the place of (/)(A) 70 (B) 75 (C) 80 (D) 85

Answer»

Correct option is (A) 70

2093.

Assertion (A) while joining the mainstream of the National Movement led by Gandhiji the tribal communities where unmindful of the demands of their situation. Reason (R) Swaraj meant for both the freedom from British rule and freedom from the oppression of the moneylenders, zamindars and feudal overlords. Code – (A) Both (A) and (R) are true but (R) is not the correct explanation of (A) (B) Both (A) and (R) are true and (R) is the correct explanation of (A) (C) (A) is true but (R) is false (D) (A) is false but (R) is true

Answer»

(D) (A) is false but (R) is true

2094.

Navya observed one slide through the microscope. In it, almost the entire cell space was occupied by vacuole. What would it be ? 1) Animal cell 2) Amoeba 3) Mature plant cell 4) Non living cell

Answer»

3) Mature plant cell

2095.

Who took lead and sacrificed the cold war? (A) Nikita Kruchev (B) Eisenhower (C) Truman (D) Gorbochev

Answer»

(D) Gorbochev

2096.

First colony established by England in America is __________ (A) Mary land (B) Virginia (C) New York (D) New Jersey

Answer»

Correct option is (B) Virginia

2097.

In which continent did the first international trade revolution take place? (A) America (B) Africa (C) Europe (D) Asia

Answer»

Correct option is (B) Africa

2098.

In which continent the Sahara desert is situated (1) South America (2) Africa (3) Asia (4) North America

Answer»

Correct option is (2) Africa 

Africa 

yes it is the right answer 

2099.

We couldn't see the meteor shower due to ……weather conditions. (1) hot (2) cold (3) unfavourable (4) favourable

Answer»

(3) unfavourable

2100.

Our teacher is a …… person. She easily captivates the attention of the students. (1) lethargic (2) dynamic (3) iconic (4) uninteresting

Answer»

Correct option is (2) dynamic