Practice questions here, for every subject and every exam. Unlimited questions for unlimited attempts, given with answers and explanations.
Which of the following vitamin deficiency causes Cheilosis?
Vitamin B2 deficiency causes Cheilosis.
Important Points:
Name of Vitamin | Chemical Name | Deficiency diseases |
Vitamin A | Retinol | Xerophthalmia and Night blindness |
Vitamin D | Calciferol | Rickets and osteomalacia |
Vitamin K | Phylloquinone | Bleeding (hemorrhage) |
Vitamin B1 | Thiamin | Beri -Beri |
Vitamin B3 | Niacin | Pellagra |
Vitamin B7 | Biotin | Loss of appetite, weakness |
Vitamin B12 | Cyanocobalamin | Pernicious anemia |
Vitamin C | Ascorbic acid | Scurvy |
Which of the following compounds is green in colour?
Hydrated ferrous sulphate is green in colour.
Important Points:
Which of the following is used in the treatment of cancer?
Radon is used in the treatment of cancer.
Important Points:
Options Explanation:
Which of the following is used for de-icing of roads?
Sodium chloride is used for de-icing of roads.
Important Points:
Option Explanation:
Salt | Formula | Use |
Magnesium hydroxide | Mg(OH)2 | It is used as antacid in medicine |
Magnesium carbonate | MgCO3 | Magnesium carbonate is an ingredient of toothpaste |
Sodium carbonate decahydrate, Washing soda | Na2CO3. 10H2O | It is used in water softening, laundering and cleaning. |
Which of the following colourless gas gives dense white fumes when a rod dipped in ammonium hydroxide is brought near the mouth of the test tube?
Hydrochloric gas is a colorless gas that gives dense white fumes when a rod dipped in ammonium hydroxide is brought near the mouth of the test tube.
Important Points:
Gas | Characteristics |
CO2 | A colorless, odourless gas is evolved which turns lime water milky. |
SO2 | Colorless gas with a pungent smell which turns acidified potassium dichromate solution green. |
NO2 | Brown fumes which turn acidified potassium iodide solution containing starch solution blue. |
Which of the following gas is used for cooking in homes?
Liquefied petroleum gas is used for cooking in homes.
Important Points:
Which of the following is an actinoid?
Uranium is an actinoid.
Important Points :
Option Explanation :
Element | Type of element |
Cerium | Lanthanoid |
Terbium | Lanthanoid |
Potassium | Alkali metal |
Which of the following is the molecular formula of sulphurous acid?
H2SO3.
Important Points :
Sulphurous acid is acidic in nature which turns blue litmus paper to red.
Options Explanation :
Oxoacids of sulphur | Formula |
Sulphuric acid | H2SO4 |
Oleum | H2S2O7 |
Thiosulphuric acid | H2S2O3 |
Which of the following element does not show catenation?
Lead does not show catenation.
Important Points :
As one moves down the group, the size and electronegativity increase, and the tendency to show catenation decreases.
Option Explanation :
Element | Speciality |
Carbon | It is an essential constituent of all living organisms. |
Germanium | Transistors and semiconductor devices are made from ultrapure germanium and silicon. |
Lead | Lead exist as galena( PbS). |
Silicon | Silicon is an essential component of ceramics, glass, and cement. |
Which of the following is a dimensionless property?
Electronegativity is a dimensionless property.
Important Points:
Option Explanation:
Property | Unit |
Ionization enthalpy | It represents the energy required to remove an electron from an isolated gaseous atom (X) in its ground state. |
Atomic radius | Atomic Radius to refer to both covalent or metallic radius depending on whether the element is a non-metal or a metal. Atomic radii can be measured by X-ray or other spectroscopic methods. |
Electron gain enthalpy | When an electron is added to a neutral gaseous atom (X) to convert it into a negative ion, the enthalpy change accompanying the process is defined as the Electron Gain Enthalpy. |
Which of the following catalyst is used in the manufacture of the sulphuric acid by contact process?
Sulphuric acid is a strong mineral acid. Sulfuric acid (H2S04) is a corrosive substance. It is also known as oil of vitriol or chemical king of all acids. It is manufactured by contact process. In the contact process, vanadium pentoxide (V2O5) and Fe2O3 are used as catalyst. It is a good dehydrating agent and a strong oxidizing agent.
Which gas is evolved at anode during electrolysis of brine solution?
Chlorine gas is evolved at anode during electrolysis of brine solution.
Important Points:
Which of the following is an antacid?
Ranitidine is an Antacids.
Important Points :
Option Explanation:
Drugs | Type |
Dimetapp | Antihistamine |
Equanil | Tranquillizers |
Aspirin | Analgesics |
Which of the following is not the weak acid?
Nitric acid is not the weak acid.
Important Points-
Which gas when passed through acidic dichromate solution (orange in colour) turns it to green?
The gas that turns acidic dichromate solution orange to green is sulfur dioxide gas.
Important points:
Gases | Test |
Carbon dioxide gas |
|
Oxygen gas |
|
Hydrogen gas |
|
Which gas reacts with dry slaked lime to form bleaching powder?
Chlorine gas reacts with dry slaked lime (Ca(OH)2) to form bleaching powder.
Important Points:
Gamaxene, a ring compound is used as a –
Gamaxene, a ring compound is used as a Insecticide.
Important Points :
Options Exhalation :
Compounds | Used as |
Butane and propane | LPG fuel (Liquefied petroleum gas) |
Chloroform, Diethyl ether | Anesthesia |
Urea | Fertilizer |
The polymer used for the manufacture of non-stick utensils is prepared from which of the following monomeric units?
The polymer used for the manufacture of non-stick utensils is prepared from Tetrafluoro ethylene.
Important Points:
Which of the following is also known as blistering agent?
Mustard gas is also known as blistering agent.
Important Points:
Consider the following statements about ionic compounds-
How many statements given above is/are correct?
2 statements about ionic compounds are correct-
Important Points:
Properties of ionic compounds-