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.
| 1801. |
Upon oxidation, Strontium compounds give |
| A. | scarlet /violet color |
| B. | brick red color |
| C. | yellow color |
| D. | apple green color |
| Answer» B. brick red color | |
| 1802. |
The amount of potential energy depends on the |
| A. | temperature of the particles |
| B. | force between the particles |
| C. | distance between the particles and their temperature |
| D. | force and distance between the particles |
| Answer» E. | |
| 1803. |
All waves can be classified into two categories which are |
| A. | Transverse waves and electromagnetic waves |
| B. | Sound waves and electromagnetic waves |
| C. | Transverse waves and longitudinal waves |
| D. | Longitudinal waves and electromagnetic waves |
| Answer» D. Longitudinal waves and electromagnetic waves | |
| 1804. |
A Bronsted-Lowry base is a |
| A. | proton acceptor |
| B. | proton donor |
| C. | none |
| D. | both a and b |
| Answer» B. proton donor | |
| 1805. |
Catalysis is classified as |
| A. | heterogeneous catalysis |
| B. | homogeneous catalysis |
| C. | none |
| D. | both a and b |
| Answer» E. | |
| 1806. |
Metalloids have electrical conductivity in |
| A. | large amount |
| B. | small amount |
| C. | stable |
| D. | medium |
| Answer» C. stable | |
| 1807. |
The energy used by a moving object is termed as |
| A. | Mechanical Energy |
| B. | Potential Energy |
| C. | Thermal Energy |
| D. | Kinetic Energy |
| Answer» E. | |
| 1808. |
A metal wire resists 200 Ω at ice point and 240 Ω at steam point, and the resistance of wire is 212 Ω, so the room temperature would be |
| A. | 20 °C |
| B. | 10 °C |
| C. | 40 °C |
| D. | 30 °C |
| Answer» E. | |
| 1809. |
Full electron shells near to nucleus has effect on outer shell electrons of |
| A. | attracting |
| B. | repelling |
| C. | none |
| D. | holding in centre |
| Answer» C. none | |
| 1810. |
A shopping cart moves at a speed of 3 m s |
| A. | 9 J |
| B. | 6 J |
| C. | 12 J |
| D. | 18 J |
| Answer» B. 6 J | |
| 1811. |
The greater the difference between electro negativities the more is the |
| A. | molarities |
| B. | polarity |
| C. | none |
| D. | both a and b |
| Answer» C. none | |
| 1812. |
To stop emission of SO |
| A. | converters |
| B. | scrubbers |
| C. | none |
| D. | both a and b |
| Answer» C. none | |
| 1813. |
Nitrogen makes up 78% of earth's atmosphere and is |
| A. | non-metallic |
| B. | metal |
| C. | amphoteric |
| D. | alkaline |
| Answer» B. metal | |
| 1814. |
The physical properties of bonding are influenced by bonding between |
| A. | ions |
| B. | atoms |
| C. | All of Above |
| D. | molecules |
| Answer» D. molecules | |
| 1815. |
The formation of a single product from two reactant molecules is known as |
| A. | elimination reaction |
| B. | addition reaction |
| C. | oxidation |
| D. | substitution reaction |
| Answer» C. oxidation | |
| 1816. |
The number of amino acids by which human proteins are manufactured is |
| A. | forty |
| B. | twenty |
| C. | eight |
| D. | twelve |
| Answer» C. eight | |
| 1817. |
The formula Na |
| A. | +2 |
| B. | +1 |
| C. | 2 |
| D. | 1 |
| Answer» C. 2 | |
| 1818. |
The electronegativity of Chlorine (Cl) is |
| A. | 3 |
| B. | 3.8 |
| C. | 2.5 |
| D. | 2.8 |
| Answer» B. 3.8 | |
| 1819. |
SiO |
| A. | Liquid |
| B. | solid |
| C. | Gaseous |
| D. | Aqueous |
| Answer» C. Gaseous | |
| 1820. |
In substitution reaction ligands in a complex can be exchanged |
| A. | partially |
| B. | wholly |
| C. | none |
| D. | both a and b |
| Answer» E. | |
| 1821. |
Aqueous mixture of sodium ethanoate is buffer solution in |
| A. | ethanol |
| B. | ethanoic acid |
| C. | ethanal |
| D. | ethene |
| Answer» C. ethanal | |
| 1822. |
Phenol and carboxylic acids |
| A. | make acyl chloride |
| B. | does not react |
| C. | all of them |
| D. | make phenyl ester |
| Answer» C. all of them | |
| 1823. |
The direction about the pivot is |
| A. | Anti-clockwise |
| B. | Clockwise |
| C. | Pivot doesn't move |
| D. | Both clockwise and anti-clockwise |
| Answer» E. | |
| 1824. |
We may feel internal injury or altitude sickness at higher or lower altitudes than sea level because |
| A. | our body adjusts the pressure slowly |
| B. | the pressure of our body remains the same |
| C. | our body experiences low pressure |
| D. | our body experiences high pressure |
| Answer» B. the pressure of our body remains the same | |
| 1825. |
The fuel in space shuttle's rocket burns due to occurrence of |
| A. | reduction reaction |
| B. | oxidation reaction |
| C. | catalysis |
| D. | re-dox reaction |
| Answer» E. | |
| 1826. |
Latent heat of fusion is |
| A. | the amount of heat required to raise the temperature of a substance by 1 K |
| B. | the amount of heat required to raise the temperature of a 1 kg of a substance by 1 K |
| C. | the amount of heat required to change the phase of a substance from liquid to gas without any change |
| D. | the amount of heat required to change the phase of a substance from solid to liquid without any chan |
| Answer» E. | |
| 1827. |
Compounds which contain Cl-, Br-, and I- will always react with |
| A. | silver nitrate |
| B. | nitric acid |
| C. | none |
| D. | sulfuric acid |
| Answer» E. | |
| 1828. |
The enthalpy change of solution involves release or absorb of energy by adding 1 mole of ionic solid in sufficient |
| A. | water |
| B. | alcohol |
| C. | base |
| D. | gas |
| Answer» B. alcohol | |
| 1829. |
A link between amino acid molecules in a poly peptide chain by condensation reaction is called |
| A. | poly peptide linkage |
| B. | peptide bond |
| C. | none |
| D. | both a and b |
| Answer» C. none | |
| 1830. |
Ionic and covalent bonds requires a lot of energy to break them because they are very |
| A. | volatile |
| B. | strong |
| C. | efficient |
| D. | weak |
| Answer» C. efficient | |
| 1831. |
Major portion of mixture of hydrocarbons like crude oil is composed of |
| A. | alcohol |
| B. | ester |
| C. | propane |
| D. | alkanes |
| Answer» E. | |
| 1832. |
The main product of calcium carbonate is |
| A. | carbonates |
| B. | lime |
| C. | limestone |
| D. | calcium |
| Answer» D. calcium | |
| 1833. |
While reacting with metals, halogens get |
| A. | reduced |
| B. | oxidized |
| C. | None of Above |
| D. | deoxidized |
| Answer» B. oxidized | |
| 1834. |
The types of half cell includes |
| A. | non-metal/non-metal |
| B. | metal/metal ion |
| C. | all of them |
| D. | ion/ion |
| Answer» D. ion/ion | |
| 1835. |
Chlorine is in gas form at |
| A. | high temperature |
| B. | room temperature |
| C. | equilibrium |
| D. | low temperature |
| Answer» C. equilibrium | |
| 1836. |
Using E |
| A. | reduced |
| B. | oxidize |
| C. | none |
| D. | both a and b |
| Answer» E. | |
| 1837. |
Faraday has proposed two laws of |
| A. | hydrolysis |
| B. | electrolysis |
| C. | gravity |
| D. | electromagnetism |
| Answer» C. gravity | |
| 1838. |
If air at a pressure of 2 M Pa is compressed such that the new volume of the air is one eighth of its initial volume, then the new pressure of the air is |
| A. | 2 M Pa |
| B. | 0.25 M Pa |
| C. | 16 M Pa |
| D. | 8 M Pa |
| Answer» D. 8 M Pa | |
| 1839. |
When the direction of the applied force and the direction in which the object moves are perpendicular to each other, then |
| A. | no work is done |
| B. | no power is used |
| C. | power is used |
| D. | work is done |
| Answer» B. no power is used | |
| 1840. |
Acid rain falls into streams, rivers and lakes making it |
| A. | pollute |
| B. | clean |
| C. | all of them |
| D. | lowering pH |
| Answer» E. | |
| 1841. |
Group IV oxides are stable to |
| A. | acids |
| B. | water |
| C. | temperature |
| D. | pressure |
| Answer» D. pressure | |
| 1842. |
By accepting H |
| A. | bases |
| B. | acids |
| C. | None of Above |
| D. | Catalyst |
| Answer» B. acids | |
| 1843. |
Pressure of gases can be measured by |
| A. | Thermometer |
| B. | Barometer |
| C. | Galvanometer |
| D. | Manometer |
| Answer» E. | |
| 1844. |
Boiling is the change of state |
| A. | from liquid to gas with change in temperature of 75 °C |
| B. | from solid to liquid with change in temperature of 25 °C |
| C. | from liquid to gas without change in temperature |
| D. | from solid to liquid without change in temperature |
| Answer» D. from solid to liquid without change in temperature | |
| 1845. |
The density of gold is 19300 kg m |
| A. | 9642 kg |
| B. | 9426 kg |
| C. | 9246 kg |
| D. | 9264 kg |
| Answer» E. | |
| 1846. |
Conventionally the electrode potential refers to |
| A. | reduction |
| B. | oxidation |
| C. | none |
| D. | both a and b |
| Answer» B. oxidation | |
| 1847. |
A reaction in which organic molecules join together along with elimination of molecule of water or HCl is called |
| A. | substitution |
| B. | addition |
| C. | evaporation |
| D. | condensation |
| Answer» E. | |
| 1848. |
The straight line in which the light travels is called |
| A. | ray |
| B. | wave |
| C. | light perimeter |
| D. | path |
| Answer» B. wave | |
| 1849. |
The compounds of alkanes which are in high demands |
| A. | naphtha fraction |
| B. | gasoline fraction |
| C. | gasohol |
| D. | both a and b |
| Answer» E. | |
| 1850. |
The system of reaction in which none of reactants leaves the reaction mixture is termed as |
| A. | closed system |
| B. | open system |
| C. | partially closed system |
| D. | semi open system |
| Answer» B. open system | |