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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.
| 1651. |
Ligands which can form two co-ordinate bonds from each ion or molecule to the transition metal ion are called as |
| A. | dentate ligands |
| B. | ligands ions |
| C. | bidentate ligands |
| D. | monodentate ligands |
| Answer» D. monodentate ligands | |
| 1652. |
When calcium oxide is roasted with clay its makes |
| A. | steel |
| B. | cement |
| C. | bricks |
| D. | calcium carbonate |
| Answer» C. bricks | |
| 1653. |
Enthalpy changes are due to |
| A. | forming bonds |
| B. | breaking bonds |
| C. | none |
| D. | both a and b |
| Answer» E. | |
| 1654. |
The representation of bond by a single, double or triple line is done in |
| A. | covalent bond |
| B. | ionic bond |
| C. | none |
| D. | both a and b |
| Answer» B. ionic bond | |
| 1655. |
The density of Calcium (Ca) being the lowest in Group II elements, the next element of lowest density is |
| A. | Sr |
| B. | Ba |
| C. | Mg |
| D. | Be |
| Answer» D. Be | |
| 1656. |
As the speed decreases if we change the medium of electromagnetic waves from air to water, the frequency |
| A. | also increases |
| B. | also decreases |
| C. | may increase or decrease |
| D. | remains same |
| Answer» E. | |
| 1657. |
A moving object always possesses |
| A. | Kinetic Energy |
| B. | Potential Energy |
| C. | Magnetic energy |
| D. | Thermal energy |
| Answer» B. Potential Energy | |
| 1658. |
The pH of Mg(OH) |
| A. | 5 to 7 |
| B. | 1 to 4 |
| C. | 12 to 14 |
| D. | 8 to 11 |
| Answer» E. | |
| 1659. |
The boiling point of liquid oxygen is equal to -183 °C, which is equal to |
| A. | −456 K |
| B. | 90 K |
| C. | 456 K |
| D. | −90 K |
| Answer» C. 456 K | |
| 1660. |
The electrons required for bonding between NH |
| A. | Hydrogen |
| B. | Nitrogen |
| C. | All of Above |
| D. | water |
| Answer» C. All of Above | |
| 1661. |
The unit for the latent heat of vaporization is |
| A. | Pascals |
| B. | Kelvin |
| C. | Ohms |
| D. | Joules |
| Answer» E. | |
| 1662. |
The strong intermolecular forces between amino acids is due to presence of |
| A. | zwitterions ion |
| B. | azonium ion |
| C. | none |
| D. | both a and b |
| Answer» B. azonium ion | |
| 1663. |
The absolute zero is equal to -273 °C, which is equal to |
| A. | −546 K |
| B. | 546 K |
| C. | 1 K |
| D. | 0 K |
| Answer» E. | |
| 1664. |
The types of stereoisomerism are optical isomerism and |
| A. | trans-isomerism |
| B. | cis-isomerism |
| C. | all of them |
| D. | cis-trans isomerism |
| Answer» E. | |
| 1665. |
Force that always opposes motion between two surfaces in contact is termed as |
| A. | Friction |
| B. | Weight |
| C. | Tension |
| D. | Resistance |
| Answer» B. Weight | |
| 1666. |
The amount of energy required to raise the temperature of a substance by 1 K or 1 °C is termed as |
| A. | Thermal ability |
| B. | Thermal transfer |
| C. | Heat capacity |
| D. | Heat energy |
| Answer» D. Heat energy | |
| 1667. |
The big jump in the value of ionization energy tends to cause the removal of second electron with |
| A. | difficulty |
| B. | ease |
| C. | lastly |
| D. | slowly |
| Answer» B. ease | |
| 1668. |
As the ionic radius of cation will be smaller it ll be more efficient in polarizing |
| A. | carbonate molecule |
| B. | carbonate ion |
| C. | water |
| D. | hydrogen ion |
| Answer» C. water | |
| 1669. |
If we increase the pressure, the volume of the gas would |
| A. | decrease |
| B. | increase |
| C. | vary |
| D. | remain same |
| Answer» B. increase | |
| 1670. |
An object has a specific latent heat of 24 J kg |
| A. | 48 J |
| B. | 12 J |
| C. | 22 J |
| D. | 26 J |
| Answer» B. 12 J | |
| 1671. |
Specific radioactive isotopes are used for |
| A. | check thyroid activity |
| B. | leakage check |
| C. | All of Above |
| D. | treat some types of cancer |
| Answer» D. treat some types of cancer | |
| 1672. |
Enzymatic activity takes place at |
| A. | high temperature |
| B. | low temperature |
| C. | zero |
| D. | constant |
| Answer» C. zero | |
| 1673. |
Which one of the following is a characteristic of force? It |
| A. | cannot make a moving object to increase speed |
| B. | can make a stationary object to start move |
| C. | can change the direction of an object |
| D. | can make a moving object to decrease speed |
| Answer» B. can make a stationary object to start move | |
| 1674. |
Iodine is |
| A. | insoluble |
| B. | non-polar |
| C. | none |
| D. | both a and b |
| Answer» E. | |
| 1675. |
Halogenated hydrocarbons are used in |
| A. | aerosols |
| B. | refrigerators |
| C. | body sprays |
| D. | shaving creams |
| Answer» B. refrigerators | |
| 1676. |
The atmospheric pressure is calculated by the |
| A. | height of mercury column in barometer |
| B. | height of water column in barometer |
| C. | height of oil column in the barometer |
| D. | height of lime column in the barometer |
| Answer» B. height of water column in barometer | |
| 1677. |
Every chemical element is represented by Greek or Latin |
| A. | symbols |
| B. | alphabet |
| C. | allusion |
| D. | gods |
| Answer» B. alphabet | |
| 1678. |
Insect which feed on cactus has a scarlet pigment known as |
| A. | carminic acid |
| B. | cochineal |
| C. | none |
| D. | both a and b |
| Answer» E. | |
| 1679. |
If the wavelength of a wave moving on a slinky spring with a frequency of 5 Hz is equal to 0.5 m then the speed of the wave is equal to |
| A. | 2.5 m⁄s |
| B. | 0.1 m⁄s |
| C. | None of the above |
| D. | 10 m⁄s |
| Answer» B. 0.1 m⁄s | |
| 1680. |
Sound can be transmitted through a medium which |
| A. | has higher density than air |
| B. | contains charge |
| C. | contains molecules that collide |
| D. | contains molecules that vibrate |
| Answer» E. | |
| 1681. |
A pendulum bob is a good example of |
| A. | Oscillation |
| B. | Vibration |
| C. | Periodic motion |
| D. | Ventilation |
| Answer» D. Ventilation | |
| 1682. |
The pair of outer shell electrons which doesn't take part in bonding are called |
| A. | lone pairs |
| B. | spectators |
| C. | none |
| D. | spin pairs |
| Answer» B. spectators | |
| 1683. |
Sulfur dioxide and sulfur trioxide react and dissolve in water yielding |
| A. | acidic solutions |
| B. | basic solutions |
| C. | halogens |
| D. | alkalis |
| Answer» B. basic solutions | |
| 1684. |
If the acceleration or deceleration is zero, the force acting on it are |
| A. | unbalanced |
| B. | balanced or add up to zero |
| C. | unbalanced and add up to zero |
| D. | balanced but would not add up to zero |
| Answer» C. unbalanced and add up to zero | |
| 1685. |
The double bond in ethene is formed from |
| A. | a pi bond |
| B. | a sigma bond |
| C. | none |
| D. | both a and b |
| Answer» E. | |
| 1686. |
Electron affinities which are always andothermic |
| A. | 3rd electron affinity |
| B. | 2nd electron affinity |
| C. | none |
| D. | both a and b |
| Answer» E. | |
| 1687. |
After the substrate diffuses with the enzyme, what is the next action in series? |
| A. | the products diffuse away from the active site |
| B. | amino acids may acts as nucleophiles |
| C. | the product dissolves in capillaries and is carried away. |
| D. | the enzyme-substrate complex is binded |
| Answer» E. | |
| 1688. |
As the resistance of a metal wire at ice point is 5.50 Ω and 10.50 Ω at steam point, and the resistance of wire is 6.75 Ω the room temperature would be |
| A. | 10 °C |
| B. | 15 °C |
| C. | 50 °C |
| D. | 25 °C |
| Answer» E. | |
| 1689. |
Rainwater has pH in unpolluted regions of |
| A. | 7 |
| B. | 6 |
| C. | 7.5 |
| D. | 5.7 |
| Answer» E. | |
| 1690. |
Ka is called |
| A. | base dissociation constant |
| B. | acid dissociation constant |
| C. | none |
| D. | Avogadro constant |
| Answer» C. none | |
| 1691. |
An acidic oxide does not react with |
| A. | bases |
| B. | acids |
| C. | both of these |
| D. | None of Above |
| Answer» C. both of these | |
| 1692. |
In vacuum, through which of the process we can transfer thermal energy? |
| A. | Convection |
| B. | Conduction |
| C. | Conduction and convection |
| D. | Radiation |
| Answer» E. | |
| 1693. |
The thermal energy that reaches the surface of the earth from sun, is transferred through the process of |
| A. | Convection |
| B. | Conduction |
| C. | Conduction and convection |
| D. | Radiation |
| Answer» E. | |
| 1694. |
From the Physics point of view, which one of the following is doing work? |
| A. | A boy rote learning for his Physics exam |
| B. | A man carrying a heavy pile of books in a stationary position |
| C. | None of them |
| D. | A girl working on her Math homework |
| Answer» D. A girl working on her Math homework | |
| 1695. |
A car covers a distance of 5 kilometers in 5 minutes, its average speed is equal to |
| A. | 25 km⁄h |
| B. | 1 km⁄h |
| C. | None of the above |
| D. | 60 km⁄h |
| Answer» E. | |
| 1696. |
The acidic molecules formed by non-metals of Period 3, act as |
| A. | bases |
| B. | acids |
| C. | Oxide |
| D. | Alkali |
| Answer» C. Oxide | |
| 1697. |
Boiling is |
| A. | quicker than evaporation |
| B. | slower than evaporation |
| C. | totally different thing |
| D. | same as evaporation |
| Answer» B. slower than evaporation | |
| 1698. |
Enzymes are large molecules of |
| A. | proteins |
| B. | carbohydrates |
| C. | lipids |
| D. | vitamins |
| Answer» B. carbohydrates | |
| 1699. |
The formula of ethene is |
| A. | CH3 |
| B. | C2H6 |
| C. | C2H |
| D. | C4H12 |
| Answer» C. C2H | |
| 1700. |
Pure copper rod in a solution of copper II sulfate solution constitutes the |
| A. | electrode |
| B. | half cell |
| C. | all of them |
| D. | ions |
| Answer» C. all of them | |