Metals can be obtained from Metal Oxide by _____ of Metal Oxide
Metallic oxide is reduced to metal during the extraction of metals. How are metals extracted? The process of extraction of... View Article
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The percentage of Oxygen present in the atmosphere is about _______
The percentage of oxygen present in the atmosphere is about 20.94%. Gases in the atmosphere The most abundant naturally occurring... View Article
The proportion of Carbon dioxide in the atmosphere is about ______
The proportion of carbon dioxide in the atmosphere is about 0.03% Carbon dioxide is an important long-lived trace gas in... View Article
If the Hypocotyl does not elongate, then it is ______ germination
If the Hypocotyl does not elongate, then it is ______ germination Hypogeal germination The hypocotyl does not elongate much. Instead,... View Article
Calculate the molecular masses of H2, O2, Cl2, CO2, CH4, C2H6, C2H4, NH3, CH3OH.
Answer: The total sum of the masses of the atoms or elements present in the molecule is termed as molecular... View Article
Where do the lipids and proteins constituting the cell membrane get synthesized?
Answer: Lipids are synthesized in the Smooth endoplasmic reticulum (SER), and the proteins are synthesized in the rough endoplasmic reticulum... View Article
In which kingdom a single-celled, eukaryotic and photosynthetic organism belong?
Solution: Organisms that are single-celled, eukaryotic and photosynthetic are placed in Kingdom Protista because protists are eukaryotic organisms that cannot be classified... View Article
Chlorine reacts with water in the presence of sunlight to liberate _______
When chlorine water is exposed to diffused sunlight, it evolves colourless and odourless oxygen gas. When chlorine water is exposed... View Article
Water is known as the ______ because many substances dissolve in it.
Water is known as the universal solvent because many substances dissolve in it. Why water is known as a universal... View Article
The number of periods present in the Modern Periodic Table are _______
The modern Periodic table contains 7 periods. Groups and periods There are two ways of categorizing elements in the periodic... View Article
If X is a non-metal, its Oxide X2O3 is expected to be a _______oxide
If X is a non-metal, Its Oxide X2O3 is expected to be an acidic oxide X is a non-metal it... View Article
The substances which do not allow Oxidation to occur are called _______
The substances which do not allow oxidation to occur are called Anti-oxidants. Antioxidants are compounds that inhibit oxidation. An antioxidant... View Article
Pb(S) + CuSO4(Aq) → PbSO4(Aq) + Cu(S). The reaction is an example of ______ reaction
Reactions in which the more reactive element displaces the less reactive element from its compound are called displacement reactions Pb(S)... View Article
KNO3 + H2O → KOH + HNO3. The above reaction is _______ reaction
The above reaction is endothermic. The chemical reactions which proceed with the absorption of heat energy are called endothermic reactions.... View Article
Formation of rust when the Iron is exposed to moist air is called ________
Corrosion is the formation of metal oxide when exposed to moist air. Rust is iron oxide. Corrosion occurs in the... View Article
Spores of disease-causing bacteria can be killed by the method of _____
UV radiation Salting prevents biodegradation of food under normal conditions, while drying and sun-drying inhibit the growth of microbes How... View Article
The Given Reaction is an Example of – Fill in the Blank – Reaction: C + 2S + Δ + Cs2
The given reaction is an example of endothermic reaction. Heat is absorbed during the reaction.
The number on an ion or a radical indicates the ______ of that radical.
The number on an ion or a radical indicates the valency of that radical. Valency and Radical A group of... View Article
The Solutions Which Show a Ph in the Range 0 To 7 Are – Fill in the Blank – in Nature
The solutions which show a pH in the range 0 to 7 are acidic in nature.
Acids contain _______ ions and bases contain ________ ions
An acid can be defined as a compound that, when dissolved in water, gives hydronium ions (H3O+). An alkali (or... View Article
