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MCQOPTIONS
This section includes 1315 Mcqs, each offering curated multiple-choice questions to sharpen your General Knowledge knowledge and support exam preparation. Choose a topic below to get started.
| 751. |
Systematic name for (CuI)s ? |
| A. | Copper Iodide |
| B. | Cobalt Fluoride |
| C. | Ferrous Oxide |
| D. | All of the above |
| Answer» B. Cobalt Fluoride | |
| 752. |
Synthetic detergents are prepared from |
| A. | potassium salts of higher fattyÂacids |
| B. | sodium salts of higher fattyÂacids |
| C. | hydrocarbons of petroleum |
| D. | glycerides |
| Answer» D. glycerides | |
| 753. |
Sulphur and Chlorine can have what type of a bond? |
| A. | Polar covalent |
| B. | Polyionic |
| C. | NonÂ-polar covalent |
| D. | Ionic |
| Answer» B. Polyionic | |
| 754. |
Stoichiometry is based on |
| A. | Law of conservation of energy |
| B. | Law of conservation of mass |
| C. | Newton's 1st law |
| D. | Kepler's law |
| Answer» C. Newton's 1st law | |
| 755. |
Standard Electrode potential is measured in terms of |
| A. | Pyrometer |
| B. | Electrometer |
| C. | Thermometer |
| D. | Voltmeter |
| Answer» E. | |
| 756. |
Stainless steel contains steel and |
| A. | manganese |
| B. | vanadium |
| C. | nickel |
| D. | chromium |
| Answer» E. | |
| 757. |
Sphalerite is an ore/mineral of |
| A. | Mercury |
| B. | Molybdenum |
| C. | Silver |
| D. | Zinc |
| Answer» E. | |
| 758. |
Species containing same number of electrons are called |
| A. | Isotopes |
| B. | Isobars |
| C. | Isoelectronic |
| D. | Isotones |
| Answer» D. Isotones | |
| 759. |
Sour taste of lemon is due to the presence of which of the following ? |
| A. | Citric acid |
| B. | Acetic acid |
| C. | Oxalic acid |
| D. | Formic acid |
| Answer» B. Acetic acid | |
| 760. |
Soft drinks contain: |
| A. | Oxalic acid |
| B. | Tartaric acid |
| C. | Carbonic acid |
| D. | Citric acid |
| Answer» D. Citric acid | |
| 761. |
SnCl2 + 2HgCl2 ---> Hg2Cl2 + SnCl4_x005F_x000D_ Â _x005F_x000D_ In the given reaction_x005F_x000D_ |
| A. | HgCl2 is oxidised |
| B. | SnCl2 is oxidised |
| C. | Hg2Cl2 is oxidised |
| D. | SnCl2 is reduced |
| Answer» C. Hg2Cl2 is oxidised | |
| 762. |
Silver Mirror test is given by which one of the following compounds?_x005F_x000D_ 1. Benzophenone_x005F_x000D_ 2. Acetaldehyde_x005F_x000D_ 3. Acetone_x005F_x000D_ 4. Formaldehyde |
| A. | Only 1 |
| B. | Only 2 |
| C. | 1 and 3 |
| D. | 2 and 4 |
| Answer» E. | |
| 763. |
Select the INCORRECT set of Molecular Formula - IUPAC Name - Common Name from the following options. |
| A. | C4H9OH |
| B. | C2H3OH - Methanol - Methyl Alcohol |
| C. | C2H5OH - Ethanol - Ethyl Alcohol |
| D. | C3H7OH - Propanal - Propyl Alcohol |
| Answer» C. C2H5OH - Ethanol - Ethyl Alcohol | |
| 764. |
Select the option that correctly matches the contents of the first column with the contents of the second column._x005F_x000D_ Â _x005F_x000D_ _x005F_x000D_ _x005F_x000D_ _x005F_x000D_ A. Elements combine in fixed ratios_x005F_x000D_ I. Dalton's atomic theory_x005F_x000D_ _x005F_x000D_ _x005F_x000D_ B. Atoms are indivisible_x005F_x000D_ II. The same number of molecules_x005F_x000D_ _x005F_x000D_ _x005F_x000D_ C. Sulphate and Oxalate ions are anions, whereas magnesium and _x005F_x000D_ III. Law of constant proportions_x005F_x000D_ _x005F_x000D_ _x005F_x000D_ D. Gram atomic mass of an element and the gram molecular mass of a compound contain_x005F_x000D_ IV. Ammonium ions are cations_x005F_x000D_ _x005F_x000D_ _x005F_x000D_ _x005F_x000D_ |
| A. | A-III, B-II, C-IV, D-I |
| B. | A-III, B-I, C-IV, D-II |
| C. | A-III, B-IV, C-I, D-II |
| D. | A-I, B-III, C-IV, D-II |
| Answer» C. A-III, B-IV, C-I, D-II | |
| 765. |
Select the INCORRECT set of Molecular Formula - IUPAC Name - Common Name from the following options._x005F_x000D_ |
| A. | C4H9OHÂ - Butanol - Butyl Alcohol |
| B. | C2H5OHÂ - Ethanol - Ethyl Alcohol |
| C. | CH3OHÂ - Methanol - Methyl Alcohol |
| D. | C3H8OHÂ - Propanol - Propyl Alcohol |
| Answer» E. | |
| 766. |
Select the INCORRECT match's from the following._x005F_x000D_ Â _x005F_x000D_ A. Copper - CuB. Gold - AuC. Mercury - MeD. Platinum - PtE. Silver - Ag_x005F_x000D_ |
| A. | Only E |
| B. | D, B and C |
| C. | A and B |
| D. | Only C |
| Answer» E. | |
| 767. |
Select the correct statement (s). |
| A. | When energy is transferred to the system from the surrounding as work, the surrounding do work on the system and the value of work (W) positive. |
| B. | When energy is transferred from the system to the surrounding as work, work is done on the surrounding and the value of W is negative. |
| C. | Both (A) and (B) |
| D. | None of the above |
| Answer» D. None of the above | |
| 768. |
Saturated Hydrocarbons are called |
| A. | alkynes |
| B. | isomers |
| C. | alkanes |
| D. | alkenes |
| Answer» D. alkenes | |
| 769. |
Saturated carbon compounds can form which types of chain structures?_x005F_x000D_ Â _x005F_x000D_ I. Straight chain_x005F_x000D_ II. Branched chain_x005F_x000D_ |
| A. | Only I |
| B. | Only II |
| C. | Neither I nor II_x005F_x000D_ |
| D. | Both I and II |
| Answer» E. | |
| 770. |
Safety matches contain |
| A. | Sulphur |
| B. | Phosphorus |
| C. | Magnesium |
| D. | Potassium |
| Answer» C. Magnesium | |
| 771. |
Rutherford's alpha-scattering experiment related to the size of the |
| A. | nucleus |
| B. | atom |
| C. | electron |
| D. | neutron |
| Answer» B. atom | |
| 772. |
Rusting is _____. |
| A. | Electrolysis |
| B. | Oxidation |
| C. | Redox reaction (Oxidation and Reduction) |
| D. | Reduction |
| Answer» D. Reduction | |
| 773. |
Rust is formed from iron and |
| A. | Carbon |
| B. | Oxygen |
| C. | Hydrogen |
| D. | All of the above |
| Answer» C. Hydrogen | |
| 774. |
Rust forms when _____ reacts with chemicals in rocks. |
| A. | Water |
| B. | Oxygen |
| C. | Nitrogen |
| D. | Carbondioxide |
| Answer» C. Nitrogen | |
| 775. |
Rupee 5 and 10 coins are now made of |
| A. | Ferritic stainless steel |
| B. | Silver and steel |
| C. | Cupro nickel alloy |
| D. | Copper and brass |
| Answer» D. Copper and brass | |
| 776. |
Researchers at the University of Illinois have discovered new form of matter called Excitonium which was coined by ______ in the 1960’ |
| A. | Bertrand Halperin |
| B. | Eugene Wigner |
| C. | Paul Dirac |
| D. | Felix Bloch |
| Answer» B. Eugene Wigner | |
| 777. |
Removal of oil and grease from sewage [waste water] |
| A. | Skimming |
| B. | Filtration |
| C. | Screening |
| D. | None of the above |
| Answer» B. Filtration | |
| 778. |
Removal of carbon particles from air involves the principle of |
| A. | Precipitation |
| B. | Filteration |
| C. | Electrophoresis |
| D. | Sedimentation |
| Answer» D. Sedimentation | |
| 779. |
Reduction of oxygen which forms water occurs during |
| A. | Respiration |
| B. | Photosynthesis |
| C. | Both A & B |
| D. | Neither photosynthesis nor respiration |
| Answer» B. Photosynthesis | |
| 780. |
Release of which among the following is the primary reason for depletion of the ozone layer? |
| A. | Nitrous oxide |
| B. | Hydrogen dioxide |
| C. | Chlorofluro carbon |
| D. | Carbon monoxide |
| Answer» D. Carbon monoxide | |
| 781. |
Recycled plant matter is known as ? |
| A. | Decomposed |
| B. | Carbide |
| C. | Compost |
| D. | None |
| Answer» D. None | |
| 782. |
Reactions that require CO2 take place in |
| A. | the Calvin cycle alone |
| B. | the light reactions alone |
| C. | Both A & B |
| D. | the chloroplast, but is not part of photosynthesis |
| Answer» B. the light reactions alone | |
| 783. |
Rayon is chemically |
| A. | Glucose |
| B. | Amylase |
| C. | Cellulose |
| D. | Pectin |
| Answer» D. Pectin | |
| 784. |
Rank these compounds by boiling point- Pentane, Propane and Hexane. |
| A. | Pentane > Propane > Hexane |
| B. | Propane > Pentane > Hexane |
| C. | Hexane > Pentane > Propane |
| D. | Propane > Hexane > Pentane |
| Answer» D. Propane > Hexane > Pentane | |
| 785. |
Radioactive decay is likely to occur when |
| A. | an atom has too many neutrons or protons |
| B. | protons break into neutrons and electrons |
| C. | an atom has too many electrons |
| D. | atoms collide with one another |
| Answer» B. protons break into neutrons and electrons | |
| 786. |
Pyrrhotite is an ore/mineral of_x005F_x000D_ |
| A. | Lead |
| B. | Nickel |
| C. | Gold |
| D. | Tin |
| Answer» C. Gold | |
| 787. |
Pyrolusite is an ore/mineral of ___________. |
| A. | Mercury |
| B. | Manganese |
| C. | Molybdenum |
| D. | Lead |
| Answer» C. Molybdenum | |
| 788. |
Protium, deuterium and tritium are the naturally occurring isotopes of:_x005F_x000D_ |
| A. | nitrogen |
| B. | hydrogen |
| C. | carbon |
| D. | gold |
| Answer» C. carbon | |
| 789. |
Proteins differ from one another because |
| A. | The peptide bonds linking amino acids differ from protein to protein |
| B. | Each protein contains its own unique sequence of sugar molecules |
| C. | The number of nucleotides found in each protein varies from molecule to molecule |
| D. | The sequence of amino acids in the polypeptide chain differs from protein to protein |
| Answer» E. | |
| 790. |
Propyne and propene can be distinguished by |
| A. | AgNO₃ in ammonia |
| B. | conc. Hâ‚‚SOâ‚„ |
| C. | dil. KMnOâ‚„ |
| D. | Brâ‚‚ in CClâ‚„ |
| Answer» B. conc. Hâ‚‚SOâ‚„ | |
| 791. |
Process of loosing electrons is known as _____. |
| A. | oxidation |
| B. | reduction |
| C. | radiation |
| D. | both oxidation and reduction |
| Answer» B. reduction | |
| 792. |
Process of gaining electrons is known as _____. |
| A. | oxidation |
| B. | reduction |
| C. | radiation |
| D. | both oxidation and reduction |
| Answer» C. radiation | |
| 793. |
Potassium Permanganate is used for purifying drinking water, because________ |
| A. | It is a reducing agent |
| B. | It is an oxidising agent |
| C. | It is a sterilising agent |
| D. | It dissolves the impurities of water |
| Answer» C. It is a sterilising agent | |
| 794. |
Positive ions are formed from neutral atoms by loss of |
| A. | neutrons |
| B. | protons |
| C. | nuclear charge |
| D. | electrons |
| Answer» E. | |
| 795. |
Plastic bottles are made of a polymer called PET. The expanded form of PET is |
| A. | Polyethylene terephthalate |
| B. | Polyethyl terelene |
| C. | Polyethylene triphosphate |
| D. | Polyethyl tetrachloride |
| Answer» B. Polyethyl terelene | |
| 796. |
Plaster of Paris ______._x005F_x000D_ Â _x005F_x000D_ I. changes into gypsum on mixing with water_x005F_x000D_ II. is CaSO4.2H2O_x005F_x000D_ III. is used for decoration_x005F_x000D_ |
| A. | Only I and II_x005F_x000D_ |
| B. | Only I and III_x005F_x000D_ |
| C. | Only II and III_x005F_x000D_ |
| D. | All I, II and III_x005F_x000D_ |
| Answer» C. Only II and III_x005F_x000D_ | |
| 797. |
Place these hydrocarbons in order of decreasing boiling point._x005F_x000D_ 1. Paraffin_x005F_x000D_ 2. Octadecane_x005F_x000D_ 3. Hexane_x005F_x000D_ 4. Neohexane and_x005F_x000D_ 5. Ethane |
| A. | Paraffin > Octadecane > Neohexane > Hexane > Ethane |
| B. | Paraffin > Octadecane > Hexane > Neohexane > Ethane |
| C. | Hexane > Paraffin > Octadecane > Neohexane > Ethane |
| D. | None of the above |
| Answer» C. Hexane > Paraffin > Octadecane > Neohexane > Ethane | |
| 798. |
Pick the odd one out from the following: |
| A. | NaOH |
| B. | Cu(OH)2 |
| C. | NH4OH |
| D. | Zn(OH)2 |
| Answer» B. Cu(OH)2 | |
| 799. |
Phosphorus is kept in water because |
| A. | its ignition temperature is very high |
| B. | its ignition temperature is very low |
| C. | its critical temperature is high |
| D. | its critical temperature is low |
| Answer» B. its ignition temperature is very low | |
| 800. |
pH of the human blood is ______. |
| A. | Slightly Acidic |
| B. | Highly Acidic |
| C. | Slightly Basic |
| D. | Highly Basic |
| Answer» D. Highly Basic | |