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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.
| 1451. |
Carbondioxide in rain water form dilute solution of weak acid |
| A. | carboxylic acid |
| B. | carbonic acid |
| C. | none |
| D. | both a and b |
| Answer» C. none | |
| 1452. |
The compounds which contain oxides of carbon or carbonate hydrogencarbonate ions are called |
| A. | organic compounds |
| B. | hydrocarbons |
| C. | none |
| D. | inorganic compounds |
| Answer» E. | |
| 1453. |
A Pi-bond is |
| A. | non-symmetrical |
| B. | symmetrical |
| C. | is formed through the sideways overlap of s-and p-orbital |
| D. | is formed through the sideways overlap of s-orbital |
| Answer» B. symmetrical | |
| 1454. |
The reaction in which replacement of one atom of group of atoms are involved is termed as |
| A. | elimination reaction |
| B. | addition reaction |
| C. | oxidation |
| D. | substitution reaction |
| Answer» E. | |
| 1455. |
When solid is turned to liquid, the process is called |
| A. | boiling |
| B. | melting |
| C. | condensation |
| D. | freezing |
| Answer» C. condensation | |
| 1456. |
The metal ions and chloride ions are called |
| A. | metallic ions |
| B. | hydrated ions |
| C. | All of Above |
| D. | chloride ions |
| Answer» C. All of Above | |
| 1457. |
Diamond are hard, |
| A. | bears high melting point |
| B. | don't conduct electricity |
| C. | All of Above |
| D. | bears high boiling point |
| Answer» D. bears high boiling point | |
| 1458. |
On heating esters with an acid or base it will be |
| A. | hydrolyzed |
| B. | deployed |
| C. | homolysed |
| D. | prototyped |
| Answer» B. deployed | |
| 1459. |
The effects even itself CFC can be retained in atmosphere for above a |
| A. | few months |
| B. | hundred years |
| C. | week |
| D. | year |
| Answer» C. week | |
| 1460. |
Relative atomic mass for chlorine is |
| A. | 35.6 |
| B. | 35.7 |
| C. | 35.5 |
| D. | 3.56 |
| Answer» D. 3.56 | |
| 1461. |
Hydrolysis of peptides is aided through the enzyme |
| A. | trypsin |
| B. | urease |
| C. | thrombokinase |
| D. | amylase |
| Answer» B. urease | |
| 1462. |
The food we eat contains |
| A. | Elastic Potential Energy |
| B. | Chemical Potential Energy |
| C. | Kinetic energy |
| D. | Gravitational Potential Energy |
| Answer» C. Kinetic energy | |
| 1463. |
At room temperature, Group IV tetrachlorides are |
| A. | solid lumps |
| B. | crystals |
| C. | gases |
| D. | liquids |
| Answer» E. | |
| 1464. |
In reference to the result, the SI unit for moment of force is |
| A. | N + m, where N is newtons and m is meters |
| B. | N/m, where N is newtons and m is meters |
| C. | N - m, where N is newtons and m is meters |
| D. | N*m, where N is newtons and m is meters |
| Answer» E. | |
| 1465. |
In the process of solidification, which change of state takes place? |
| A. | Gas to solid |
| B. | Liquid to solid |
| C. | Semi-solid to solid |
| D. | Gas to liquid and then to solid |
| Answer» C. Semi-solid to solid | |
| 1466. |
A thermometer with mercury in its bulb has l |
| A. | 60 °C |
| B. | 50 °C |
| C. | 10 °C |
| D. | 75 °C |
| Answer» C. 10 °C | |
| 1467. |
An unmarked mercury thermometer has l |
| A. | 50 °C |
| B. | 45 °C |
| C. | 40 °C |
| D. | 55 °C |
| Answer» C. 40 °C | |
| 1468. |
When the force is applied on an object but the object does not move, it means that |
| A. | no work is done |
| B. | no power is used |
| C. | power is used |
| D. | work is done |
| Answer» B. no power is used | |
| 1469. |
The nuclear charge down the group |
| A. | decreases |
| B. | increases |
| C. | constant |
| D. | remains same |
| Answer» C. constant | |
| 1470. |
CH3OOH is weak acid and unionized form of |
| A. | ethanol |
| B. | ethanoic acid |
| C. | ethanal |
| D. | ethene |
| Answer» C. ethanal | |
| 1471. |
In Al |
| A. | 2 |
| B. | 1 |
| C. | 4 |
| D. | 3 |
| Answer» B. 1 | |
| 1472. |
The energy which is required to break one mole of a given bond is called |
| A. | molar energy |
| B. | bond energy |
| C. | none |
| D. | both a and b |
| Answer» C. none | |
| 1473. |
If air at a pressure of 1 M Pa is compressed such that the new volume of the air is one quarter of its initial volume, then the new pressure of the air is |
| A. | 0.25 M Pa |
| B. | 1 M Pa |
| C. | 4 M Pa |
| D. | 2 M Pa |
| Answer» D. 2 M Pa | |
| 1474. |
If two forces of 4 N and 7 N towards right are acting on an object in a same direction and two forces of 3 N and 2 N towards left are opposing them. The resultant force is |
| A. | 6 N to right |
| B. | 5 N to left |
| C. | no resultant force |
| D. | 11 N to right |
| Answer» B. 5 N to left | |
| 1475. |
Sulfur dioxide is added to foods to stop |
| A. | over ripening |
| B. | oxidation of fats |
| C. | none |
| D. | both a and b |
| Answer» E. | |
| 1476. |
If amplitude of a wave is denoted as 'A', then the vertical displacement between a crest and a trough of a wave in terms of 'A' would be |
| A. | A |
| B. | 1⁄2 of A |
| C. | None of the above |
| D. | 2A |
| Answer» E. | |
| 1477. |
The compounds which require high melting point, boiling point, high enthalpy change and lot of energy to overcome of delocalized electrons are |
| A. | ionic compounds |
| B. | metals |
| C. | non-metals |
| D. | covalent compounds |
| Answer» B. metals | |
| 1478. |
The conversion of sulfur dioxide to sulfur trioxide is basically |
| A. | irreversible reaction |
| B. | reversible reaction |
| C. | none |
| D. | both a and b |
| Answer» C. none | |
| 1479. |
Amino acid monomers contains chain with peptide linkage realizing a water molecule happens in |
| A. | substitution polymerization |
| B. | addition polymerization |
| C. | all of them |
| D. | condensation polymerization |
| Answer» E. | |
| 1480. |
Two Greek words 'element' and 'measure' constitutes the word |
| A. | stoichiometry |
| B. | spectrometry |
| C. | none |
| D. | both a and b |
| Answer» B. spectrometry | |
| 1481. |
A doctor uses unmarked clinical thermometer to check a patient, the values of the thermometer are l |
| A. | 40 °C |
| B. | 20 °C |
| C. | 80 °C |
| D. | 60 °C |
| Answer» C. 80 °C | |
| 1482. |
In symbols, pressure is equal to |
| A. | F/A, where F is force and A is area |
| B. | A/F, where A is area and F is force |
| C. | F/d, where F is force and d is distance |
| D. | d/F, where d is distance and F is force |
| Answer» B. A/F, where A is area and F is force | |
| 1483. |
SO4 2- is the formula of |
| A. | sulphate |
| B. | sulphur |
| C. | sulphide |
| D. | shulphuric acid |
| Answer» B. sulphur | |
| 1484. |
sulfur compounds are present as impurities in |
| A. | natural gas |
| B. | crude oil |
| C. | all of them |
| D. | coal |
| Answer» D. coal | |
| 1485. |
A physical quantity consists of a |
| A. | Numerical magnitude |
| B. | Analogical Magnitude |
| C. | Symbolic Magnitude |
| D. | Alphabetical Magnitude |
| Answer» B. Analogical Magnitude | |
| 1486. |
The reaction between N |
| A. | under high pressure |
| B. | at room temperature |
| C. | under very harsh conditions |
| D. | only under storm lightening |
| Answer» D. only under storm lightening | |
| 1487. |
The concentration of gas is proportional to the |
| A. | pressure |
| B. | volume |
| C. | temperature |
| D. | density |
| Answer» B. volume | |
| 1488. |
Polythene is solid at |
| A. | all temperatures |
| B. | room temperature |
| C. | low pressures |
| D. | high pressures |
| Answer» C. low pressures | |
| 1489. |
Going down the group the group II elements are more |
| A. | non-reactive |
| B. | reactive |
| C. | non-volatile |
| D. | volatile |
| Answer» C. non-volatile | |
| 1490. |
Although mercury is held by metallic bonding yet it is a |
| A. | gas |
| B. | liquid |
| C. | vapor |
| D. | solid |
| Answer» C. vapor | |
| 1491. |
Work can only be done when there is |
| A. | Power |
| B. | Force |
| C. | Efficiency |
| D. | Energy |
| Answer» E. | |
| 1492. |
CH3CH2CH2CH2CHO is formula for |
| A. | propanal |
| B. | methanol |
| C. | pentanal |
| D. | butanal |
| Answer» D. butanal | |
| 1493. |
The bond energy of a C-C bond is |
| A. | 610kJ/mol |
| B. | 350 kJ/mol |
| C. | 740kJ/mol |
| D. | 360kJ/mol |
| Answer» C. 740kJ/mol | |
| 1494. |
Sulfur can be mined from the ground and the states exporting it around the world are |
| A. | China and India |
| B. | Poland and USA |
| C. | Brazil and Poland |
| D. | USA and UK |
| Answer» C. Brazil and Poland | |
| 1495. |
The symbol for speed is |
| A. | sd |
| B. | sp |
| C. | a |
| D. | v |
| Answer» E. | |
| 1496. |
Which one of the following is not a characteristic of force? It |
| A. | cannot make a moving object to increase speed |
| B. | cannot make a stationary object to start move |
| C. | cannot change the direction of an object |
| D. | can make a moving object to decrease speed |
| Answer» E. | |
| 1497. |
In nitrogen molecule, number of electrons required by each nitrogen atom in outer shell are |
| A. | 2 |
| B. | 1 |
| C. | 4 |
| D. | 3 |
| Answer» E. | |
| 1498. |
The reduction reactions of carbonyl compounds is known to be |
| A. | Nucleophilic substitution |
| B. | Nucleophilic addition |
| C. | elimination reaction |
| D. | addition reaction |
| Answer» C. elimination reaction | |
| 1499. |
To determine mass of other compound by comparing it with the mass of carbon-12 atoms is |
| A. | relative atomic mass |
| B. | relative molecular mass |
| C. | none |
| D. | both a and b |
| Answer» B. relative molecular mass | |
| 1500. |
The Greek words for 'way up ' and 'way down' was given to |
| A. | electrolyte |
| B. | anode and cathode |
| C. | electrode |
| D. | solution |
| Answer» C. electrode | |