Scientific name of Fruits and Vegetables

Scientific Names of fruits: Common name Scientific name Apple Pyrus malus Apricot Prunus armeniaca Avocado Persea americana Banana Musa x paradisium Black currant Ribes nigrum Blackberry Rubus Blueberry Cyanococcus Coconut Cocos nucifera Custard apple Annona reticulata Date Phoenix dactylifera Fig Ficus Carica Guava Psidium guajava Gooseberry Ribes uva-Crispa Grapes Vitis vinifera Lemon Citrus x limon […]

Continue Reading

Vitamins and their sources

Vitamins and their sources: Vitamins Chemical name Solubility Deficiency Diseases due to lack of vitamin Sources for vitamin Vitamin A Retinol Fat Night blindness, colour blindness Milk, egg, cheese, green vegetables, ripe yellow fruits, cod liver oil, carrot, pumpkin etc. Vitamin B1 Thiamine Water Beriberi, Wernicke Korsakoff syndrome Pork, brown rice, Ground nuts pulses, egg, […]

Continue Reading

Solar System Multiple Choice Questions (MCQ)

Solar System Multiple Choice Questions (MCQ) 1- Outer surface temperature of the sun is (A) 6000 degree Celsius (B) 1000 degree Celsius (C) 5000 degree Celsius (D) 8000 degree Celsius   2- The glowing surface of the sun is called (A) Chromosphere (B) Photosphere (C) Convective zone (D) Corona   3- Innermost layer of the […]

Continue Reading

Temperature

Temperature: The degree of hotness or coldness of a body is known as its temperature. Temperature of a system depends upon the kinetic energy of its molecules. Higher is the kinetic energy of molecules, higher is its temperature and vice versa. The measurement of temperature with the help of some instrument is known as thermometry and the […]

Continue Reading

Raman effect

Raman effect: In 1928, Sir C. V. Raman while studying the scattering of light by liquids found that when a beam of monochromatic light was passed through organic liquids such as Benzene, toluene etc, then scattered radiation contained other frequencies in addition to that of incident light. The scattering of light from molecules with a […]

Continue Reading

Pressure

Pressure: Force experienced per unit area is known as pressure. Pressure = Force / Area Units of pressure is Newton / metre2 or N / m2 Example – Liquids and gases exert pressure on the walls of the container. Absolute pressure (pa): The pressure measured above absolute zero of pressure is called absolute zero pressure. A absolute zero pressure occurs only […]

Continue Reading

Photosynthesis

Photosynthesis: It is a process in which the green chlorophyll-containing cells of the plants synthesize the carbohydrates from CO2 and water in the presence of sunlight. Equation for the photosynthesis can be written as:                                      (Sunlight)    6CO2 + 12H2 O                →                        C6 H12 O6 + 6H2 O + 6O2                                          (Chlorophyll) The products of photosynthesis make the structure of plants. Some […]

Continue Reading

Newton’s laws of motion

Newton’s laws of motion: First law of motion: It states that a body at rest or in motion will remain at rest or in motion unless an external force is applied on it. Second law of motion: It states that a body will accelerates, when a force is applied on it. The force applied, F = ma Where ‘F’ […]

Continue Reading

Methane

Methane: It is an alkane (CnH2n+2) having chemical formula CH4. The methane is one of the major constituents (about 85%) of the natural gas. It has bond angle of 109.5 degrees. It is also known as marsh gas as it is found in marshy areas. Physical properties: (i) Boiling point : -162°C. (ii) Melting point : […]

Continue Reading

LPG (Liquefied Petroleum gas)

LPG (Liquefied Petroleum gas): LPG stands for Liquefied Petroleum gas. It is a mixture of butane (C4 H10) and propane (C3 H8). They are stored in pressurized cylindrical vessels. This is because these gases liquefy under moderate pressure and vaporize on releasing the pressure. This property of LPG enable it to transport and store it in the […]

Continue Reading