Which one of the following statements is correct? | UPSC CAPF 2026 Q No 104

Options:

1. The number of electrons in alpha 4a.) particle is 2.
2. The coordination number of EDTA is 6.
3. The charge of beta
4. particle is +2. (a) Both carbon and silicon form ionic 10 compounds. 05. Match List-I with List-II and select the correct answer using the code given below the Lists : List-I List-ll (Constituent (Example) of Paint) A. Pigment 1. Zine oxide B. Extender 2. China clay C. Thinner 3. Naphthenate D. Drier 4. Turpentine Code : (Ass "BCD 1 4 2 5) (b) A B (2) D 1 2 4 3 (c) Aen BY. ent DH 3 2 4 1 @A B ¢€ D 3 4 2 1 ARP-A-GAT/82A 45 106. Which of the following is/are renewable source(s) of energy? 1. Fossil fuel 2. Biofuel 3. Uranium 4. Hydropower Select the correct answer using the code given below. (a) 2 only (b) 3 and 4 (c) 1 and 3 (a) 2 and 4 107. Consider the following statements in the light of octane number and cetane number of fuels : 1. Cetane number is used for gasoline and octane number is used for diesel. 2. Octane number of n-hexadecane is 100 and cetane number of isooctane is 100. Which of the statements given above is/are correct? (a) 1 only (b) 2 only (c) Both 1 and 2 (da) Neither 1 nor 2 [PPOs 108. Which of the following pairs of products 11 obtained from petroleum distillation and their uses are correctly matched? 1. Petroleum ether : Used as solvent 2. Petroleum jelly : Used to make coating of metals 3. Petroleum wax : Used as rubber solvent 4. White spirit : Used for making candles Select the answer using the code given below. L (a) 1,3 and 4 (b) 1 and 2 (c) 2,3 and 4 (d) 3 and 4 only 109. Which one of the following processes is not used for the production of hydrogen gas? (a) Electrolytic process (b) Water gas-steam process (c) Liquefaction of coal gas (a) Hydrolysis of calcium carbide 110. Which among the following are, respectively the correct oxidation numbers of chloride ion in C1207, C10, ClO3 and ClO? (a) +7, +2, +4, +3 (b) +2, -1, -3, +4 () +7, +1, +3, -3 (a) +7, +1, +5, +3 111. Sound Navigation and Ranging (SONAR) is used to detect underwater objects. For this, its transmitter produces (a) microwaves (b) visible light (c) ultrasonic waves (d) infrared radiation 112. Which combination of three resistors R, Ry and R3 has minimum total resistance? (Consider R, = 1Q, Rp =2Q and R3 = 3Q) (a) When all are connected in parallel (b) When all are connected in series (c) When R, and Rp are connected in parallel and R, is in series of them (d) When R, and Rj are connected in parallel and R, is in series of them 113. If the relative density of gold is 19.3 and the density of water is 10° g/m°, what will be the density of gold in SI units? (a) 1930 kg/m? (b) 19300 kg/m? (c) 193000 kg/m? (d) 1-93x10° kg/m? [ P.T.O. 114. Velocity (m/s)-time (s) graph is plotted for 1 the motion of two cars A and Bfor 10 s, when the cars are initially at rest and acquire final velocities as V, and Vp, respectively. The respective straight lines of the graph make angles 30° and 60°, respectively with the x-axis (time). The difference in velocities V, and V, is (a) 20/3 m/s (b) 2/J3 m/s (c) 3 m/s (d) 1 m/s a 115. A uniform current-carrying narrow solenoid produces (a) uniform magnetic field inside the solenoid (b) uniform magnetic field outside the solenoid (c) magnetic field with straight field Ais lines in all the regions (d) magnetic field with oscillating nature 116. For a particle in uniform circular motion (radius R and angular velocity w), the magnitude and direction of acceleration, respectively are (a) R, along the radius outward (b) WR, towards the centre of the circle (c) w*R, towards the centre of the circle (a) wR, along the linear velocity 117. Which one among the following statements is correct? (a) The total mechanical energy of a system is conserved if the forces, doing work on it, are conservative. (b) The total mechanical energy of a system is conserved if the forces, doing work on it, are nonconservative. (c) The total mechanical energy of a system remains constant. (d) Every force encountered in mechanics does have an associated well-defined potential energy. 118. Which one of the following does not generally obey Hooke’s law? (a) Glass (b) Quartz (c) Clay (a) Copper 119. Which of the following statements regarding Carnot engine is/are correct? 1. It is an irreversible engine operating between two temperatures 7, (source) and T, (sink). 2. Its efficiency is given by n=1-T)/],, where T, is the temperature of source and Ty is the temperature of sink. Select the answer using the code given below. : (a) 1 only (b) 2 only (c) Both 1 and 2 (d) Neither 1 nor 2 [PEO: 120. In the ideal gas equation PV=pRT, 12 relating pressure P, volume V and absolute temperature T, the quantity p is (a) number of moles (b) number of molecules (c) specific heat ratio (a) coefficient of friction 121. Which one among the following statements is not correct? (a) Assembler translates an assembly 12 language program into a machine language program. (b) Compiler is a program that translates high-level language into machine language. (c) Assembly level program is a sequence of machine language instructions. : (d) The term ‘firmware’ is used for the software stored in read-only storage devices. 122. Which one among the following transmission media is best suited for transmission of information over large distance? (a) Twisted pair (b) Optical fibre (c) Thick Ethernet (d) Thin Ethernet 123. Which one among the following devices is used for converting digital signals into analog signals and vice versa? (a) Router : (b) Switch (c) Bridge (d) Modem 124. The binary multiplication of the numbers 12 and 10 will be (a) 1111000 (b) 1110001 (c) 1111001 (a) 1111010 125. How many text alignments are there in Microsoft Word? (a) 1 (b) 2 (ce) 3 (a) 4 [P.10: SPACE FOR ROU OUGH WORK [P.T.0. SPACE FOR ROUG kkk UGH WORK