1. State: The lower member of alcohols are usually colourless liquids whereas higher members are usually colourless and odourless solids. 2.Solubility: Alcohols are soluble in water. This is due to the hydroxyl group in the alcohol, which is able to form hydrogen bonds with water molecules and their decline solubility is due to the increase in … Read more

Monosaccharide | Types | carbohydrates |

Cannot be hydrolyzed into smaller units. Simplest of the carbohydrate Subunit from which disaccharides, oligosaccharides, and polysaccharides are constructed. Two types a)Depending upon the carbon atom present b)On the basis of the functional group present Physical properties of Monosaccharide Compounds are generally crystalline solids with a high melting point, very soluble in water, more or … Read more

Allenes Chemistry And Stereochemistry – 1

The Molecule with no chiral center but chiral are called allenes, cumulenes with even no of double bonds. Biphenyls and similar compounds in which chirality is due to the restricted rotation of single bonds. Allenes, alkylidenes cycloalkanes, biphenyls, and so on are said to possess a chiral axis if we stretch a tetrahedron along its … Read more

Periodic Table | Properties | Terms

s & p – block elements are also called representative elements f – block elements – Lanthanides and actinides d block – transistion elements Typical elements – Li to F Transuranic elements – Artificial elements ( At. no > 93 (Np) Group VA / 15 – Nitrogen family – Pnicogenes – suffocating agents Group VA … Read more

Chemical formula And Their Uses

Epsom salt : MgSO4 . 7H20 used in dye , used in industry , tanning industry , dressing for cotton goods. 2. Plaster of Paris: CaSo4. 1/2 H20 used in surgical bandages plastering broken or fractured bones. 3. Quick Lime: CaO used in building constructions as a mortar. 4. Plaster of Paris: CaSO4. 2H2O used … Read more

Find Oxidation number of Atom

Calculate the oxidation number of phosphorous in H3PO4. let us consider the oxidation number of phosphorous to be x. also, we know that the oxidation number of hydrogen is +1 the oxidation number of oxygen is -2. (+1) × 3 + x + (-2 ) × 4 = 0 +3 + x – 8 = … Read more

Finding the oxidation number of atom.

Q. Calculate the oxidation number of Sulphur in K2S2O3 and SOCl2. Let the oxidation number of S in K2S2O3 be x. also, we know that the oxidation number of potassium is +1 and the oxidation number of oxygen is -2. Applying the rule, (+1) × 2 + (x) × 2 + (-2) × 3 = … Read more

What volume of CO2 will be delivered at NTP to extinguish the fire from a cylinder of 10 L? ( It contains 5Kg CO2 gas )

Here, mass of CO2 = 5kg = 5 × 1000 = 5000 g Also we know that At STP , 44 g of CO2 will produce 22.4 L of CO2 gas. 5000g of CO2 will produce (22.4 × 5000 ) / 44 L of CO2 gas = 2545.45 L The volume of CO2 that will … Read more

What are antibiotics? Give an example of antibiotic with its structure

Ans. Antibiotics are the chemical substances that are produced by various species of micro-organisms such as fungi, bacteria,etc, and are capable of suppressing the growth of other micro-organisms causing their ultimate death. An example of an antibiotic is Chloramphenicol.

Electrophiles | Nature of Reagents |

These are called electron-loving species. Are electron deficient species or electron acceptor is electrophile. It is of two types Charged electrophile (E+ ): Positively aharged species in which central atom has incomplete octet. E.g, H+ X+, NO+, R+, Fe2+ Note: All cations are charged electrophiles except cations of IA, IIA group elements, Al3+ and NH4+ … Read more