General Science Mock Test | RRB Group D

Q1. What is the IUPAC name for CH3CH2CHO?

Propanal Ethanal Butanal Propionaldehyde

Q2. According to Snell's law, the ratio of the sine of the angle of incidence to the sine of the angle of refraction is:

Equal to the refractive index of the second medium Equal to the refractive index of the first medium Equal to the ratio of the speeds of light in the two media Equal to the product of the refractive indices

Q3. The stability of certain explosives can be assessed using thermal analysis techniques. Which method measures the heat flow into or out of a sample as a function of temperature, allowing for the determination of phase transitions and decomposition events?

Thermogravimetric Analysis (TGA) Differential Scanning Calorimetry (DSC) Differential Thermal Analysis (DTA) Thermomechanical Analysis (TMA)

Q4. Which cell membrane structure controls the movement of substances into and out of the cell?

Cell Wall Cytoplasm Plasma Membrane Nucleolus

Q5. The pharynx is part of both the respiratory and which other system?

Circulatory Digestive Nervous Endocrine

Q6. The equation E=mc² relates energy (E) to mass (m) and the speed of light (c). This is known as the principle of:

Mass-energy equivalence Momentum conservation Energy conservation Special relativity

Q7. In HPLC, what is the primary function of the pump?

To heat the mobile phase To apply pressure to the mobile phase and ensure a constant flow rate To detect the separated analytes To inject the sample onto the column

Q8. Which animal was the first dog to be cloned?

Dolly Snuppy Laika Enos

Q9. Which part of the eye is primarily responsible for the photochemical reaction in vision?

Lens Cornea Retina Pupil

Q10. The optimal pH for most human enzymes is:

Acidic (pH 1-3) Neutral (pH 7-8) Alkaline (pH 9-11) Varies greatly depending on the enzyme

Q11. What is the direction of the magnetic field inside a current-carrying solenoid if the current flows clockwise when viewed from one end?

Away from that end Towards that end Perpendicular to the axis Zero

Q12. When an atom loses an electron, it becomes a:

Negative ion Positive ion Neutral atom Isotope

Q13. Which of the following is the primary goal of chemical waste management?

Maximizing the disposal rate Minimizing environmental pollution and health risks Increasing the reuse of hazardous chemicals Promoting the incineration of all chemical waste

Q14. The rate-determining step in a multi-step reaction is usually the:

Fastest step Slowest step Equilibrium step All steps are equally slow

Q15. What is the chemical formula for sodium hydroxide?

NaOH KOH Ca(OH)2 Mg(OH)2

Q16. Which of the following factors affects the kinetic energy of gas molecules?

Pressure Volume Temperature Number of moles

Q17. The potential energy of a body is dependent on its:

Mass only Velocity only Position or configuration Temperature only

Q18. What is the storage form of carbohydrates in plants?

Glycogen Fat Starch Protein

Q19. Which type of neuron transmits impulses from the central nervous system to muscles or glands?

Sensory neuron Motor neuron Interneuron Bipolar neuron

Q20. The process of converting one element into another is called:

Ionization Excitation Transmutation Dissociation

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