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MCQOPTIONS
This section includes 200950 Mcqs, each offering curated multiple-choice questions to sharpen your General Knowledge knowledge and support exam preparation. Choose a topic below to get started.
| 4201. |
Three discs A, B and C having radii 2, 4, and 6 cm respectively are coated with carbon black. Wavelength for maximum intensity for the three discs are 300, 400 and 500 nm respectively. If QA, QB and QC are power emitted by A, B and C respectively, then? |
| A. | QA will be maximum |
| B. | QB will be maximum |
| C. | QC will be maximum |
| D. | QA = QB = QC |
| Answer» C. QC will be maximum | |
| 4202. |
Which of the following is the oldest dynasty ?(A) (B) (C) (D) |
| A. | Maurya |
| B. | Gupta |
| C. | Kushan |
| D. | Kanva |
| Answer» B. Gupta | |
| 4203. |
A horizontal circular plate is rotating about a vertical axis passing through its centre with an angular velocity ω0. A man sitting at the centre having two blocks in his hands stretches out his hands so that the moment of inertia of the system doubles. If the kinetic energy of the system is K initially, its final kinetic energy will be? |
| A. | 2K |
| B. | K/2 |
| C. | K |
| D. | K/4 |
| Answer» C. K | |
| 4204. |
A beam of white light is incident on glass air interface from glass to air such that green light just suffers total internal reflection. The colors of the light which will come out to air are? |
| A. | Violet, Indigo, Blue |
| B. | All coolers except green |
| C. | Yellow, Orange, Red |
| D. | White light |
| Answer» D. White light | |
| 4205. |
What was the main effect of vedic culture an Indian history ? |
| A. | Progress of Metaphysics |
| B. | Development of Sanskrit |
| C. | Solidification of race |
| D. | None of these |
| Answer» C. Solidification of race | |
| 4206. |
Which one of the following shows the best percentage? |
| A. | 384/540 |
| B. | 570/700 |
| C. | 425/500 |
| D. | 480/660 |
| Answer» D. 480/660 | |
| 4207. |
According to MO Theory,____. |
| A. | O2+ is paramagnetic and bond order greater than O2 |
| B. | O2+ is paramagnetic and bond order less than O2 |
| C. | O2+ is diamagnetic and bond order is less than O2 |
| D. | O2+ is diamagnetic and bond order is more than O2 |
| Answer» B. O2+ is paramagnetic and bond order less than O2 | |
| 4208. |
If x is 90% of y, then what percent of x is y? |
| A. | 90% |
| B. | 111(1/9)% |
| C. | 101(1/9)% |
| D. | 190% |
| Answer» C. 101(1/9)% | |
| 4209. |
When I- is oxidised by MnO4 in alkaline medium, I- converts into? |
| A. | IO3 |
| B. | I2 |
| C. | IO4- |
| D. | IOAns. |
| Answer» B. I2 | |
| 4210. |
A boy writes all the numbers from 100 to 999. The number of zeroes that he uses is 'a', the number of 5's that he uses is 'b' and the number of 8's he uses is 'c'. What is the value of b + c-a? |
| A. | 80 |
| B. | 180 |
| C. | 380 |
| D. | 280 |
| Answer» D. 280 | |
| 4211. |
Which of the following pairs give positive Tollen’s test? |
| A. | Glucose, sucrose |
| B. | Glucose, fructose |
| C. | Hexanal, Acetophenone |
| D. | Fructose, sucrose |
| Answer» C. Hexanal, Acetophenone | |
| 4212. |
Subtracting 40% of a number from the number, we get the result as 30. The number is : |
| A. | 28 |
| B. | 52 |
| C. | 50 |
| D. | 70 |
| Answer» D. 70 | |
| 4213. |
2-hexyne gives trans-2-hexene on treatment with? |
| A. | Li / NH3 |
| B. | Pd/ BaSO4 |
| C. | LiAlH4 |
| D. | Pt/H2 |
| Answer» B. Pd/ BaSO4 | |
| 4214. |
follows first order reaction. (A) → productConcentration of A, changes from 0.1 M to 0.025 M in 40 minutes. Find the rate of reaction of A whenconcentration of A is 0.01 M |
| A. | 3.47×10-4 M min- |
| B. | 3.47×10-5 M min-1 |
| C. | 1.73×10-4 M min-1 |
| D. | 1.73×10-5 M min-1 |
| Answer» B. 3.47×10-5 M min-1 | |
| 4215. |
Sheikh Nizamuddin Auliya was the disciple of— |
| A. | Sheikh Alauddin Sabir |
| B. | Khwaja Moinuddin Chisti |
| C. | Baba Farid |
| D. | Sheikh Ahmad Sirhindi |
| Answer» D. Sheikh Ahmad Sirhindi | |
| 4216. |
88% of 370+ 24% of 210 - ? = 118 |
| A. | 256 |
| B. | 268 |
| C. | 258 |
| D. | 358 |
| Answer» D. 358 | |
| 4217. |
Subtracting 6% of x from x is equivalent to multiplying x by how much? |
| A. | 0.094 |
| B. | 9.4 |
| C. | 0.94 |
| D. | 94 |
| Answer» D. 94 | |
| 4218. |
2 mol of an ideal gas expanded isothermally u0026 reversibly from 1 litre to 10 litres at 300 K. What is the enthalpy change? |
| A. | 4.98 KJ |
| B. | 11.47 KJ |
| C. | -11.47 KJ |
| D. | 0 KJ |
| Answer» E. | |
| 4219. |
If x% of y is 100 and y% of z is 200, then find a relation between x and z. |
| A. | z = tx/2 |
| B. | z = 2x |
| C. | z = x/4 |
| D. | z = 4x |
| Answer» C. z = x/4 | |
| 4220. |
Ashtadhayi was written by— |
| A. | Vedavyas |
| B. | Panini |
| C. | Shukadeva |
| D. | Balmiki |
| Answer» C. Shukadeva | |
| 4221. |
0.004 M Na2SO4 is isotonic with 0.01 M Glucose. Degree of dissociation of Na2SO4 is? |
| A. | 75% |
| B. | 50% |
| C. | 25% |
| D. | 85% |
| Answer» B. 50% | |
| 4222. |
Adi Shankaracharya established four mathas. These mathas are situated at— |
| A. | Sringeri, Dwarka, Joshimath, Prayag |
| B. | Dwarka, Joshimath, Prayag, Kanchi |
| C. | Dwarka, Puri, Sringeri, Varanasi |
| D. | Joshimath, Dwarka, Puri, Sringeri |
| Answer» E. | |
| 4223. |
A sodium salt of an unknown anion when treated with MgCl2 gives white precipitate only on boiling. The anion is? |
| A. | SO42- |
| B. | HCO3 |
| C. | CO32- |
| D. | NO3 |
| Answer» C. CO32- | |
| 4224. |
The Third Sangam was held at— |
| A. | Tuticorin |
| B. | Arrikkamedu |
| C. | Madurai |
| D. | Ernakulam |
| Answer» D. Ernakulam | |
| 4225. |
Spontaneous adsorption of a gas on solid surface is an exothermic process because? |
| A. | ΔH increases for system |
| B. | ΔS increases for gas |
| C. | ΔS decreases for gas |
| D. | ΔG increases for gas |
| Answer» D. ΔG increases for gas | |
| 4226. |
The methods chiefly used for the extraction of Lead u0026Tin from their ores are respectively? |
| A. | Self reduction u0026 carbon reduction |
| B. | Self reduction u0026 electrolytic reduction |
| C. | Carbon reduction u0026 self reduction |
| D. | Cyanide process u0026 carbon reduction |
| Answer» B. Self reduction u0026 electrolytic reduction | |
| 4227. |
What number should be subtracted from x3 +4x2−7x +12 if it is to be perfectly divisible by x 3? |
| A. | 13 |
| B. | 39 |
| C. | 42 |
| D. | None of these |
| Answer» D. None of these | |
| 4228. |
Find the number of times y1 y2 = 0 at x = 0 in 1 sec |
| A. | 100 |
| B. | 46 |
| C. | 192 |
| D. | 96 |
| Answer» E. | |
| 4229. |
In an election between two candidates, one got 55% of the total valid votes, 20% of votes were invalid. If the total number of votes was 7500, the number of valid votes that the other candidate got, was: |
| A. | 2700 |
| B. | 3000 |
| C. | 2900 |
| D. | 3100 |
| Answer» B. 3000 | |
| 4230. |
If height h2 of water level is further decreased, then? |
| A. | cylinder will not move up and remains at its original position |
| B. | for h2 = h/3, cylinder again starts moving up |
| C. | for h2 = h/4, cylinder again starts moving up |
| D. | for h2 = h/5 cylinder again starts moving up |
| Answer» B. for h2 = h/3, cylinder again starts moving up | |
| 4231. |
Rock cut architecture in Harappan culture context has been found at— |
| A. | Kalibangan |
| B. | Dhaulabira |
| C. | Kotdiji |
| D. | Amri |
| Answer» C. Kotdiji | |
| 4232. |
Inna dark room with ambient temperature T0, a black body is kept at a temperature T. Keeping the temperature of the black body constant (at T), sunrays are allowed to fall on the black body through a hole in the roof of the dark room. Assuming that there is no change in the ambient temperature of the room, which of the following statement(s) is/are correct? |
| A. | The quantity of radiation absorbed by the black body in unit time will increase. |
| B. | Since emissivity = absorptivity, hence the quantity of radiation emitted by black body in unit time will increase. |
| C. | Black body radiates more energy in unit time in the visible spectrum. |
| D. | The reflected energy in unit time by the black body remains same. |
| Answer» E. | |
| 4233. |
A olid cylinder of mass m and radius r is rolling on a rough inclined plane of inclination θ. The coefficient of friction between the cylinder and incline is μ. Then_____. |
| A. | frictional force is always μmg cos θ |
| B. | friction is a dissipative force |
| C. | by decreasing θ, frictional force decreases |
| D. | friction opposes translation and supports rotation. |
| Answer» E. | |
| 4234. |
Student multiplied a number by 3/5 instead of 5/3.What is the Percentage error in the calculation? |
| A. | 34% |
| B. | 54% |
| C. | 44% |
| D. | 64% |
| Answer» E. | |
| 4235. |
Who among the following Pakistani National was awarded the ‘Bharat Ratna’ by the Indian Government ? |
| A. | Liaqat Ali Khan |
| B. | M.A. Jinnah |
| C. | Khan Abdul Ghaffar Khan |
| D. | Muhammad Iqbal |
| Answer» D. Muhammad Iqbal | |
| 4236. |
Find the sun of the digits of the least natural number P, such that the sum of the cubes of the four smallest distinct divisors of P equals 2P. |
| A. | 10 |
| B. | 9 |
| C. | 8 |
| D. | 7 |
| Answer» C. 8 | |
| 4237. |
For the primitive integral equation ydx + y2 dy= x dy; x ∈ R, y u003e 0, y = y(x), y(1)= 1, then y(-3) is |
| A. | 3 |
| B. | 2 |
| C. | 1 |
| D. | 5 |
| Answer» B. 2 | |
| 4238. |
If y = y(x) and it follows the relation x cos y y cos x = π, then y″ (0)=? |
| A. | 1 |
| B. | -1 |
| C. | π |
| D. | - π |
| Answer» D. - π | |
| 4239. |
Tangent to the curve y = x2 + 6 at a point P (1, 7) touches the circle x2 +y2 16x+ 12y+ c = 0 at a point Q. Then the coordinates of Q are? |
| A. | (– 6, –11) |
| B. | (–9, –13) |
| C. | (– 10, – 15) |
| D. | (–6, –7) |
| Answer» E. | |
| 4240. |
How many three digit numbers can be formed using the digits 1,2,3,4,5,6,7 and 8 without repeating the digits and such that the tens digit is greater than the hundreds digit and less than the units digit? |
| A. | 72 |
| B. | 64 |
| C. | 56 |
| D. | 48 |
| Answer» D. 48 | |
| 4241. |
The function given by y = ||x| - 1| is differentiable for all real numbers except the points____. |
| A. | {0, 1, –1} |
| B. | ± 1 |
| C. | 1 |
| D. | -1 |
| Answer» B. ± 1 | |
| 4242. |
65% of ? = 20% of 422.50 |
| A. | 84.5 |
| B. | 139.425 |
| C. | 130 |
| D. | 200 |
| Answer» D. 200 | |
| 4243. |
Ibn Batuta, the famous traveller came from— |
| A. | Portugal |
| B. | Morocco |
| C. | China |
| D. | Tibet |
| Answer» C. China | |
| 4244. |
What percentage of 7.2 kg is 18 gms? |
| A. | .025% |
| B. | 2.5% |
| C. | .25% |
| D. | 25% |
| Answer» D. 25% | |
| 4245. |
Which of the following multipliers will cause a number to be increased by 29.7%? |
| A. | 1.297 |
| B. | 129.7 |
| C. | 12.97 |
| D. | 1297 |
| Answer» B. 129.7 | |
| 4246. |
a, b, c, d, and e are five consecutive integers in increasing order of size. Which one of the following expressions is not odd? |
| A. | ac + e |
| B. | ac + d |
| C. | ab + d |
| D. | ab + c |
| Answer» B. ac + d | |
| 4247. |
How many ordered pairs of integer (x,y) are there such that their product is a positive integer less than 100. |
| A. | 946 |
| B. | 1090 |
| C. | 636 |
| D. | 546 |
| Answer» B. 1090 | |
| 4248. |
The area bounded by the parabolas y = (x+1)2 andny = (x – 1)2 and the line y = 1/4 is? |
| A. | 4 sq. units |
| B. | 1/6 sq. units |
| C. | 4/3 sq. units |
| D. | 1/3 sq. units |
| Answer» E. | |
| 4249. |
The remainder when m+n is divided by 12 is 8, and the remainder when m – n is divided by 12 is 6. If m u003e n, then what is the remainder when m-n divided by 6? |
| A. | 4 |
| B. | 3 |
| C. | 2 |
| D. | 1 |
| Answer» E. | |
| 4250. |
Let X be a four-digit number with exactly three consecutive digits being same and is a multiple of 9. How many such X’s are possible? |
| A. | 20 |
| B. | 19 |
| C. | 16 |
| D. | 12 |
| Answer» B. 19 | |