Explain the difference in properties of diamond and graphite on the basis of their structures.
Answer: The difference in properties of diamond and graphite on the basis of their structures is listed below. Diamond Graphite... View Article
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Explain the principle of immunization.
Answer: It is the body’s ability to generate an immune response naturally, or through vaccines. These methods build immunity or... View Article
What is the chemical formula of Gypsum?
Answer: The chemical formula of gypsum is CaSO4.2H2O. Explanation Gypsum mineral is non-toxic, and it is a very common sulfate.... View Article
Nissl granules occur in which part and what is their function? (1) Neurons and site of protein synthesis (2) Blood and help in the nutrition and excretion (3) Sarcoplasm and help in the contraction (4) Cell and secrete mucous
Answer: (1) Nissl’s Granules are the substances found in the neurons which are a large granular type of body. These... View Article
The by-product of photosynthesis is (1) CO2 (2) H20 (3) Glucose (4) O2
Answer: (4) O2 The photosynthesis process is the process by which photoautotrophs convert light energy into chemical energy which can... View Article
What is the full form of PPLO?
Answer: The full form of PPLO is pleuropneumonia-like organisms and the term used to describe mycoplasmas. PPLO is the smallest... View Article
An example of whorled phyllotaxy (1) Kaner (2) Rose (3) Mint (4) Marigold
The correct answer is (1) Kaner The patterns of arrangement of leaves on the stem are called Phyllotaxy. There are... View Article
…………………is an example of monocot. (1) Nutmeg (2) Maize (3) Sunflower (4) Cinnamon
Answer: (2) Explanation Maize sometimes referred to as corn, is a cereal grain. The pollen inflorescence and distinct ovuliferous inflorescence... View Article
Plasma membrane is made up of (1) Protein (2) Lipid (3) Carbohydrate (4) Both A and B
Answer: (D) The fluid mosaic model explains the structure of the plasma membrane of animal cells as a mosaic of... View Article
Prove that for any positive integer n, n3 – n is divisible by 6.
Answer: there are two methods to solve the problem which are discussed below. Method 1: Let us consider a =... View Article
Explain the terms papilionaceous corolla
Answer: Papilionaceous corolla is the special type of aestivation found in the family Papilionaceae in which there are five petals,... View Article
Least count of ammeter and voltmeter are?
Answer: The lowest measurable value is known as the least count. Image: Voltmeter – System used to calculate the difference... View Article
What is loudness of sound? What factors does it depend on?
Answer: The loudness of sound is a phenomenon of a sound depending on the amplitude of the sound wave. If... View Article
Gangue have (1) Sand and soil (2) Silt (3) Gravel (4) All of these
Answer: (1) Gangue is those impurities that are closely mixed with the ores. This is unwanted material that has no... View Article
What is meant by the chelate effect? Give an example.
Answer: Lewis base which donates two lone pairs of electrons to the central metal atom is known as bidentate ligands.... View Article
Hydrogen bomb is based on the principle of (1) Nuclear fission (2) Nuclear fusion (3) Nuclear explosion (4) Chemical reaction
Answer: (3) A hydrogen bomb is based on the principle of uncontrollable nuclear fusion. Nuclear fusion is the process where... View Article
How can convert unsaturated hydrocarbon to saturated hydrocarbon?
Answer: It is possible to convert unsaturated hydrocarbons to saturated hydrocarbons by an addition reaction in which hydrogen is added... View Article
Write the name and general formula of (1) saturated hydrocarbons, (2) unsaturated hydrocarbons and draw the structure of one hydrocarbon of each type.
Answer: Hydrocarbons are organic compounds composed of elements of carbon and hydrogen only. The molecular formula for hydrocarbon compounds is... View Article
What are hydrocarbons?
Answer: Hydrocarbons are organic compounds composed of elements of carbon and hydrogen only. The molecular formula for hydrocarbon compounds is... View Article
Which of the following teeth are lophodont (1) Incisor and cannie (2) Premolar and molar (3) Cannie and premolar (4) Premolar and incisor
Answer: (2)Premolar and molar The premolars and molars are called cheek teeth or lophodont teeth. Their free ends are flattened... View Article
