MCQOPTIONS
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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.
| 2001. |
Decoy magnesium flares gives off heat confuses the infrared detection system in missiles so the enemy can not |
| A. | target air craft |
| B. | focus the air craft |
| C. | none |
| D. | both a and b |
| Answer» E. | |
| 2002. |
The range of a micrometer screw gauge is |
| A. | 2 cm |
| B. | more than 1 cm |
| C. | less than cm |
| D. | less than meter |
| Answer» D. less than meter | |
| 2003. |
The atomic number of Barium is |
| A. | 20 |
| B. | 38 |
| C. | 56 |
| D. | 12 |
| Answer» D. 12 | |
| 2004. |
Many ionic compounds have some covalent ability due to |
| A. | charge polarization |
| B. | ion polarization |
| C. | none |
| D. | both a and b |
| Answer» C. none | |
| 2005. |
The sugar in our foods are converted to acid by the bacteria which can attack our teeth's |
| A. | enamel |
| B. | stability |
| C. | none |
| D. | color |
| Answer» B. stability | |
| 2006. |
The boiling point of liquid oxygen is equal to 90 K, which is equal to |
| A. | −183 °C |
| B. | 183 °C |
| C. | −363 °C |
| D. | 363 °C |
| Answer» B. 183 °C | |
| 2007. |
pV=nRT is called as |
| A. | general gas equation |
| B. | general equation |
| C. | none |
| D. | linear gas equation |
| Answer» B. general equation | |
| 2008. |
In Phosphoric acid H |
| A. | 3 |
| B. | +1 |
| C. | 7 |
| D. | 5 |
| Answer» E. | |
| 2009. |
The advantage of fuel cell over petrol is its only product |
| A. | water |
| B. | oxygen |
| C. | CO |
| D. | |
| E. | nitrogen |
| Answer» B. oxygen | |
| 2010. |
On increasing concentration of one or more reactants, more products will be generated until |
| A. | closed system |
| B. | equilibrium |
| C. | All of Above |
| D. | open system |
| Answer» C. All of Above | |
| 2011. |
Bases which partially dissociate to some extent in a solution are known as |
| A. | weak acids |
| B. | strong acids |
| C. | weak bases |
| D. | strong bases |
| Answer» D. strong bases | |
| 2012. |
The types of intermolecular forces are |
| A. | dipole-dipole interaction |
| B. | Van der vaal's forces |
| C. | All of Above |
| D. | hydrogen bonding |
| Answer» D. hydrogen bonding | |
| 2013. |
The factors which influence ionization energies are |
| A. | distance of outer electrons |
| B. | size of nuclear charge |
| C. | All of Above |
| D. | shielding of inner electrons |
| Answer» D. shielding of inner electrons | |
| 2014. |
Bromine water does not react with benzene at |
| A. | low temperature |
| B. | high temperature |
| C. | constant temperature |
| D. | room temperature |
| Answer» E. | |
| 2015. |
Amine group react in excess of acid to produce |
| A. | ammonium salts |
| B. | ammonia |
| C. | none |
| D. | both a and b |
| Answer» B. ammonia | |
| 2016. |
If the concentration of products is decreased the equilibrium is shifted from |
| A. | right to left |
| B. | left to right |
| C. | down to left |
| D. | to the left |
| Answer» E. | |
| 2017. |
In our blood, hemoglobin is bound to oxygen in an |
| A. | equilibrium relation |
| B. | equilibrium expression |
| C. | none |
| D. | equilibrium reactions |
| Answer» E. | |
| 2018. |
sodium reacts vigorously with |
| A. | metals |
| B. | water |
| C. | All of Above |
| D. | gases |
| Answer» C. All of Above | |
| 2019. |
Liquids are |
| A. | very little compressible |
| B. | very compressible |
| C. | B and C both |
| D. | incompressible |
| Answer» B. very compressible | |
| 2020. |
If a clinical thermometer is unmarked and has l |
| A. | 20 °C |
| B. | 40 °C |
| C. | 30 °C |
| D. | 10 °C |
| Answer» B. 40 °C | |
| 2021. |
Which one of the following statements related to pressure is incorrect? |
| A. | Pressure is inversely proportional to area |
| B. | Pressure is directly proportional to force |
| C. | Pressure = Force ⁄ (Area × Height) |
| D. | The SI unit for pressure is Pascal |
| Answer» D. The SI unit for pressure is Pascal | |
| 2022. |
In BF |
| A. | is reduced to 87.5° |
| B. | the bond angle is 180° |
| C. | the bond angles are 109.5° |
| D. | the bond angles are 120° |
| Answer» E. | |
| 2023. |
The word for three angles is |
| A. | trigonal |
| B. | tetrahedral |
| C. | none |
| D. | trigonal planar |
| Answer» B. tetrahedral | |
| 2024. |
Compounds which can act as both acids and bases are called as |
| A. | Amphoteric |
| B. | isotopes |
| C. | noble compounds |
| D. | sublimates |
| Answer» B. isotopes | |
| 2025. |
Plastics we use in our everyday life is made up of |
| A. | rubber |
| B. | wood |
| C. | all of them |
| D. | polymers |
| Answer» E. | |
| 2026. |
The oxidation number of Si in SiCl |
| A. | +3 |
| B. | +2 |
| C. | +5 |
| D. | +4 |
| Answer» E. | |
| 2027. |
The maximum oxidation number increases |
| A. | down the column |
| B. | across the group |
| C. | down the group |
| D. | across the period |
| Answer» E. | |
| 2028. |
The SI unit for thermal energy is |
| A. | Ohms |
| B. | Joules |
| C. | Watts |
| D. | Pascals |
| Answer» C. Watts | |
| 2029. |
The temperature at which thermal decomposition of metal carbonates of Group II takes place |
| A. | increases down the group |
| B. | increases along the Period2 |
| C. | remains constant across the Group II metals |
| D. | decreases down the group |
| Answer» B. increases along the Period2 | |
| 2030. |
The genetic material DNA is found in |
| A. | Ribosome's |
| B. | Cytoplasm |
| C. | Nucleus |
| D. | Mitochondria |
| Answer» D. Mitochondria | |
| 2031. |
The volume of gas is |
| A. | inversely proportional to temperature |
| B. | directly proportional to temperature |
| C. | inversely proportional to heat |
| D. | directly proportional to friction |
| Answer» C. inversely proportional to heat | |
| 2032. |
Every temperature measuring instrument makes use of a physical property of a substance in order to measure temperature objectively, which physical property is used by Constant-volume gas thermometer? |
| A. | Volume of a fixed mass of liquid |
| B. | Electromotive force |
| C. | Pressure of a fixed mass of gas at constant volume |
| D. | Resistance of a piece of metal |
| Answer» D. Resistance of a piece of metal | |
| 2033. |
Ethanol is made undrinkable by addition of |
| A. | yeast |
| B. | sugar cane |
| C. | methane |
| D. | methanol |
| Answer» E. | |
| 2034. |
The compounds which only contain carbon and hydrogen are termed as |
| A. | organic compounds |
| B. | hydrocarbons |
| C. | none |
| D. | inorganic compounds |
| Answer» C. none | |
| 2035. |
The rate of evaporation increases as |
| A. | the exposed surface area of the liquid decreases |
| B. | the exposed surface area of the liquid increases |
| C. | atmospheric pressure increases |
| D. | the movement of air above the surface of the liquid decreases |
| Answer» C. atmospheric pressure increases | |
| 2036. |
The acidic nature of Al and Si ions can be judged by allowing them to react with |
| A. | O |
| B. | (g) |
| C. | water |
| D. | alkalis |
| E. | acids |
| Answer» D. alkalis | |
| 2037. |
If the temperature of a metal object is increased the electrons would |
| A. | gain kinetic energy |
| B. | loss kinetic energy |
| C. | may loss or may gain kinetic energy |
| D. | won't loss or gain kinetic energy |
| Answer» B. loss kinetic energy | |
| 2038. |
The specific arrangement of elements in periodic table shows |
| A. | electronic structure |
| B. | melting point |
| C. | polarity |
| D. | conductivity |
| Answer» B. melting point | |
| 2039. |
Reluctance of the object to change its state of rest or motion is termed as |
| A. | Time |
| B. | Mass |
| C. | inertia |
| D. | Weight |
| Answer» D. Weight | |
| 2040. |
Longer chains of amino acids forming polymers bonded via amide link is called |
| A. | poly peptide |
| B. | peptide |
| C. | amide |
| D. | amine |
| Answer» B. peptide | |
| 2041. |
Which one of the waves tans our skin and causes some substances to become fluorescent? |
| A. | ultraviolet waves |
| B. | infrared waves |
| C. | infrared and ultraviolet waves both |
| D. | gamma rays |
| Answer» B. infrared waves | |
| 2042. |
The over all representation of a reaction rate in terms of equation is known as |
| A. | rate equation |
| B. | rate of reaction |
| C. | balanced equation |
| D. | reaction equation |
| Answer» B. rate of reaction | |
| 2043. |
Corrosive acids like sulfuric acid can act like |
| A. | alkali |
| B. | base |
| C. | All of Above |
| D. | acid |
| Answer» C. All of Above | |
| 2044. |
One element may have different crystalline and molecular forms called as |
| A. | allophorms |
| B. | allomorphs |
| C. | none |
| D. | allotropes |
| Answer» E. | |
| 2045. |
In electrolysis the very high current is passed which is equal to |
| A. | 20,000 A |
| B. | 40,000 A |
| C. | 10,000 A |
| D. | 30,000 A |
| Answer» C. 10,000 A | |
| 2046. |
Volume of a fixed mass of liquid is a physical property that changes with |
| A. | Change in temperature |
| B. | Change in pressure |
| C. | Change in heat capacity |
| D. | Change in density |
| Answer» B. Change in pressure | |
| 2047. |
Enzyme activity refers to the |
| A. | number of moles of substrate converted to product per minute |
| B. | number of moles of enzymes converted to product per minute |
| C. | None of Above |
| D. | number of substrate molecules reacted per enzyme per minute |
| Answer» B. number of moles of enzymes converted to product per minute | |
| 2048. |
The responsiveness 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 minimum and maximum temperatures that the thermometer can measure |
| Answer» C. None of the above | |
| 2049. |
The fuel gasohol is mixture of |
| A. | petrol |
| B. | ethanol |
| C. | none |
| D. | both a and b |
| Answer» E. | |
| 2050. |
When an undissolved ionic compound comes in contact with a saturated solution there is an establishment of |
| A. | constancy |
| B. | stability |
| C. | none |
| D. | equilibrium |
| Answer» E. | |