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MCQOPTIONS
This section includes 64577 Mcqs, each offering curated multiple-choice questions to sharpen your General Knowledge knowledge and support exam preparation. Choose a topic below to get started.
| 2051. |
The reaction NaCl(s) → Na |
| A. | the NaCl is hydrated |
| B. | NaCl reacts with water |
| C. | NaCl is hydrolyzed by water |
| D. | NaCl is insoluble in water |
| Answer» B. NaCl reacts with water | |
| 2052. |
A bulb weighs 500 N, its mass in grams would be |
| A. | 5 g |
| B. | 50 g |
| C. | 500 g |
| D. | 5000 g |
| Answer» B. 50 g | |
| 2053. |
The two outermost electrons occupy an s sub-shell in the elements of |
| A. | Period III |
| B. | Period II |
| C. | Group III |
| D. | Group II |
| Answer» E. | |
| 2054. |
Two forces of magnitude 5N and 10N act on a wooden block of mass 2 kg. If 5N force acts towards right and 10 N force acts towards left, which one of the following statements is correct? |
| A. | Resultant force is 15 N towards the right |
| B. | Resultant force is 15 N towards the left |
| C. | Resultant force is 5N towards the left |
| D. | Resultant force is 5 N towards the right |
| Answer» D. Resultant force is 5 N towards the right | |
| 2055. |
The energy which is required to elevate the temperature of 1g of liquid by 1 °C is called |
| A. | specific heat capacity |
| B. | ideal heat capacity |
| C. | none |
| D. | both a and b |
| Answer» B. ideal heat capacity | |
| 2056. |
Most alcoholic drinks are made by fermentation of |
| A. | glucose |
| B. | sugar cane |
| C. | all of them |
| D. | ethene |
| Answer» B. sugar cane | |
| 2057. |
The movement of electrons in transition elements with in d sub-shell gives |
| A. | mass |
| B. | color |
| C. | viscosity |
| D. | polarity |
| Answer» C. viscosity | |
| 2058. |
Lithium has electrons |
| A. | 3 |
| B. | 2 |
| C. | 4 |
| D. | 1 |
| Answer» B. 2 | |
| 2059. |
Half life of first order reaction is |
| A. | lesser |
| B. | greater |
| C. | constant |
| D. | high |
| Answer» D. high | |
| 2060. |
Which of the following have the strongest intermolecular forces of attraction? |
| A. | Liquid |
| B. | Solid |
| C. | Gel |
| D. | Gas |
| Answer» C. Gel | |
| 2061. |
Condensation polymerization involves monomers containing functional groups of |
| A. | different kind |
| B. | same kind |
| C. | none |
| D. | all groups |
| Answer» B. same kind | |
| 2062. |
The greater attractive force due to increasing positive nuclear charge pulls valence shell electrons closer to |
| A. | proton |
| B. | nucleus |
| C. | none |
| D. | neutrons |
| Answer» C. none | |
| 2063. |
Kilojoules per mole is the unit of |
| A. | enthalpy change |
| B. | bond energy |
| C. | volume |
| D. | density |
| Answer» B. bond energy | |
| 2064. |
Compressions and rarefactions are due to the |
| A. | vibration of air molecules |
| B. | movement if air molecules |
| C. | variability of vibration of air molecules |
| D. | variability of air pressure |
| Answer» E. | |
| 2065. |
Porcelain is made for making crockery which is itself being prepared by |
| A. | soil |
| B. | mud |
| C. | silicon |
| D. | clay |
| Answer» E. | |
| 2066. |
The reaction in which diazonium ion reacts with an alkaline solution of phenol to produce azo dye is called |
| A. | desorption |
| B. | coupling reaction |
| C. | none |
| D. | diazotization |
| Answer» C. none | |
| 2067. |
Waves that travel in a direction parallel to the direction of vibration are known as |
| A. | Longitudinal waves |
| B. | Transverse waves |
| C. | Electromagnetic waves |
| D. | Water waves |
| Answer» B. Transverse waves | |
| 2068. |
Friction and resistance cause energy loss in the form of |
| A. | Potential Energy |
| B. | Electrical energy |
| C. | Kinetic energy |
| D. | Thermal energy |
| Answer» E. | |
| 2069. |
Amides are refluxed for hydrolysis by |
| A. | sodium hydroxide |
| B. | sodium chloride |
| C. | none |
| D. | both a and b |
| Answer» E. | |
| 2070. |
An unmarked laboratory thermometer has l |
| A. | 40 °C |
| B. | 20 °C |
| C. | 80 °C |
| D. | 60 °C |
| Answer» B. 20 °C | |
| 2071. |
A pair of shoes weighs 10 N on earth and 1.6 N on the moon. Its mass is |
| A. | 16 kg |
| B. | 1 kg |
| C. | 6.25 kg |
| D. | 8.4 kg |
| Answer» C. 6.25 kg | |
| 2072. |
The ions which do not take part in any activity step during a chemical reaction are called |
| A. | negative ions |
| B. | positive ions |
| C. | spectators ions |
| D. | neutral ions |
| Answer» D. neutral ions | |
| 2073. |
The element Germanium in Group IV is a |
| A. | non-metal |
| B. | metal |
| C. | None of Above |
| D. | metalloid |
| Answer» E. | |
| 2074. |
Amines and its derivatives are used to treat diseases like |
| A. | insomnia |
| B. | malaria |
| C. | all of them |
| D. | sleeping sickness |
| Answer» D. sleeping sickness | |
| 2075. |
To analyze a data a graph is plotted in first step following |
| A. | calculating slope |
| B. | taking tangents |
| C. | none |
| D. | both a and b |
| Answer» E. | |
| 2076. |
The standard electrode potential for any half-cell is the measurement of |
| A. | ions apart |
| B. | voltage |
| C. | deposited ions |
| D. | radii of ions |
| Answer» C. deposited ions | |
| 2077. |
Whenever there is no empty orbital is available with in sub-shell electrons are |
| A. | reflected |
| B. | deflected |
| C. | charged |
| D. | paired |
| Answer» E. | |
| 2078. |
Sulfuric acid is manufactured by help of |
| A. | Contact process |
| B. | Haber's process |
| C. | none |
| D. | both a and b |
| Answer» B. Haber's process | |
| 2079. |
Sulfuric acid is synthesized by the process of |
| A. | contact |
| B. | Haber |
| C. | hydrolysis |
| D. | electrolysis |
| Answer» B. Haber | |
| 2080. |
The movement of particles in liquids and gases is observed as |
| A. | Brownian motion |
| B. | Bruneian motion |
| C. | randomium motion |
| D. | blackian motion |
| Answer» B. Bruneian motion | |
| 2081. |
The sensitivity of a thermometer refers to |
| A. | the amount of change in thermometric property for a unit change in temperature |
| B. | how quickly the thermometer can register change in temperature |
| C. | None of the above |
| D. | the min and max temperatures that the thermometer can measure |
| Answer» B. how quickly the thermometer can register change in temperature | |
| 2082. |
Consider the reaction: Si(s) + Cl |
| A. | 2 |
| B. | 1 |
| C. | 4 |
| D. | 3 |
| Answer» C. 4 | |
| 2083. |
If the velocity changes with time. It means that the object may be |
| A. | decelerating |
| B. | accelerating |
| C. | moving in a uniform velocity |
| D. | accelerating and decelerating both |
| Answer» E. | |
| 2084. |
After Barium (Ba), the density of which of these metals is highest? |
| A. | Sr |
| B. | Ca |
| C. | Mg |
| D. | Be |
| Answer» B. Ca | |
| 2085. |
The shape of complex with six ligands attached is |
| A. | octahedral |
| B. | tetrahedral |
| C. | tetrahedron |
| D. | hexane |
| Answer» B. tetrahedral | |
| 2086. |
Large molecules made up of small monomers are called |
| A. | polymers |
| B. | peptides |
| C. | none |
| D. | both a and b |
| Answer» B. peptides | |
| 2087. |
In a free radical reaction the free radicals are formed at |
| A. | propagation step |
| B. | initiation step |
| C. | a and b |
| D. | termination step |
| Answer» D. termination step | |
| 2088. |
When molecules become bonded to atoms on surface of a solid the process is termed as |
| A. | chemisorptions |
| B. | adsorption |
| C. | desorption |
| D. | both a and b |
| Answer» E. | |
| 2089. |
Drinking with a straw is a good example of |
| A. | ozonic pressure |
| B. | atmospheric pressure |
| C. | tropospheric pressure |
| D. | exospheric pressure |
| Answer» C. tropospheric pressure | |
| 2090. |
The greater electron repulsion in lone pairs in water molecule results in |
| A. | bonds being pulled closer together |
| B. | bonds being pushed further apart |
| C. | distorting the molecular structure |
| D. | resulting in a linear shape |
| Answer» B. bonds being pushed further apart | |
| 2091. |
In Group IV, after Carbon, the highest melting point is of |
| A. | Lead (Pb) |
| B. | Tin (Sn) |
| C. | Germanium (Ge) |
| D. | Silicon (Si) |
| Answer» E. | |
| 2092. |
The formula for mass of liquid (if density and volume are provided) is |
| A. | m = ρ/V, where ρ is density and V is volume |
| B. | m = ρV, where P is density and V is volume |
| C. | m = V/ρ, where V is volume and ρ is density |
| D. | m = ρ + V, where ρ is density and V is volume |
| Answer» C. m = V/ρ, where V is volume and ρ is density | |
| 2093. |
The charge on any ion depend upon the gain or loss of |
| A. | protons |
| B. | electron |
| C. | none |
| D. | neutrons |
| Answer» C. none | |
| 2094. |
One of p orbital on nitrogen atom overlaps with pi bonding system in benzene ring in molecule of |
| A. | ethylamine |
| B. | phenyl amine |
| C. | none |
| D. | both a and b |
| Answer» C. none | |
| 2095. |
A boy walks up the staircase of 20 m with a force of 600 N, the time taken by the boy is 8 minutes. The power consumed by the boy is |
| A. | 240 W |
| B. | 25 W |
| C. | 72.5 W |
| D. | 16 W |
| Answer» C. 72.5 W | |
| 2096. |
As the number of proton increases the ionization energy |
| A. | increases |
| B. | decreases |
| C. | fluctuate |
| D. | remain same |
| Answer» B. decreases | |
| 2097. |
The volume that a gas occupies depends upon its |
| A. | temperature |
| B. | pressure |
| C. | none |
| D. | both a and b |
| Answer» E. | |
| 2098. |
In a typical hydraulic press, a force of 20 N is exerted on the small piston of area 0.050 m |
| A. | 100 N |
| B. | 200 N |
| C. | 10 N |
| D. | 50 N |
| Answer» C. 10 N | |
| 2099. |
Work in relevance to time is related to |
| A. | Work |
| B. | Efficiency |
| C. | Force |
| D. | Power |
| Answer» E. | |
| 2100. |
Metals which are high in reactivity series are used to extract |
| A. | oils |
| B. | metals |
| C. | metalloids |
| D. | non-metals |
| Answer» E. | |