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nce between hydrogen and alkali metals:1) Hydrogen is a non metal whereas alkali metals are metals.2) Hydrogen can form both ionic as well as covalent compounds whereas alkali metals only form ionic compounds.3) Hydrogen can accept as well as LOSE its single electron whereas alkali metals readily lose their electron to form a noble gas configuration.4) Hydrogen is a gas at room temperature whereas alkali metals are solid at room temperature.5) Hydrogen ion is unstable in water. H+readily REACT wth water to form H3O+whereas Na+ and K+ are stable in water.6) Ionisation Energy of hydrogen (313 K cal PER MOLE) is very high as compared to the alkali metals (maximum of 147 K cal per mole).So, there are many differences between hydrogen and alkali metals.  I hope it helpful to you............pleszz mark as the brainlist

te the percentage of ionic CHARACTER of HCl MOLECULE .Dipole moment of HCl is 1.03 D $ bond LENGTH is 1.275 A0.electronic charge is 4.8 x 10-10

of VALENCE ELECTRONS.

cohol is heated in the presence of h2so4 ...it FORMS ETHENE and water is removed..in which h2so4 is act as DEHYDRATING AGENT..

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s of Covalent carbides are SILICON CARBIDE ( SiC ) or Carborandum and Boron carbide (B4 C3 ) . EXAMPLES of IONIC carbides are Be2 C+4H2O _ _ _ _ _ ->2Be ( OH )2+CH4AI4C3+12H2O _ _ _ _ _ _ -> 4AI ( OH )3+3CH4 .

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_(91)Pa^(234),. ... Question from Class 12 Chapter ATOMS And NUCLEI. An isotope .92U238 DECAYS successively to form . 90Th234,.91Pa234,.90Th234 ... Text Solution. Answer :.

tosynthesis is the transformation of RADIANT energy to chemical energy. Plants TAKE in water, carbon dioxide, and sunlight and turn them intoglucose and oxygen. Called photosynthesis, one of the results of this process is that carbon dioxide is removed from the air.(ii) Radiant Energy - is a combination ofheat and light energy. ... Examples: A light bulb, the glowing coils on a toaster, the sun, and even HEADLIGHTS on cars. E. ELECTRICAL Energy - Energyproduced by electrons moving through a substance is known as electrical energy.

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swer is ATTACHED above ALONG with it's I. U. P. A. C. NAMES.

be SODIUM CARBONATE (NA2CO3) or sodium HYDROGEN carbonate or sodium bi carbonate(NAHCO3)

blank spaces for the UNDISCOVERED elements (atomic MASSES, ELEMENT: 44, scandium; 68, gallium; 72, germanium; & 100, technetium) so that certain elements can be grouped together. However, Mendeleev had not predicted the noble gases, so no spots were left for them.

tum mechanics the POSITION of orbital r not EXACTLY FIXED,as in Bohr's modelQuantum mechanics shows the probability of position of orbitals

use of chemical fertilizers may cause land degradation while the EXCESS use of MANURE which is organic in NATURE may not cause any Land Degradation and ALSO it is healthy for the SOIL and the crops to grow.

an CO2 than H22- CH4 than O2 than H2

E,here is your answerask if any queries____________❤____________Let the oxidation number of Cl be x THEN1). in HCL x + 1 = 0X = - 1oxy. no. of Cl is -1____________2). in HClO1 + x + (-2) = 0 x = 1oxy. no. of Cl is +1____________3). in x + 4(-2) = -1x = +7 oxy. no. of Cl is +7 ____________4). in CA(OCL)Cl ( here Cl at the end have the oxidation (-1) same as HCl)2 + (-2) + x + (-1) = 0x = + 1oxy. no. of Cl is +1____________❤____________HOPE THIS HELPS YOUplease like it and [email protected]

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of the PRESENCE of d ORBITAL.... These VARIES in BOND LENGTH

your QUESTION... Where it is?

ecause it it won't be sealed the PURIFIED WATER will GET dirty please MARK me as brainliest

e REACTION between Ammonia and OXYGEN in PRESENCE of HEATED PLATINUM.

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ns in atoms orbit the nucleus. The electrons can only orbit stably, without radiating, in certain orbits (CALLED by Bohr the “stationary orbits”) at a certain discrete set of distances from the nucleus. These orbits are associated with definite ENERGIES and are also called ENERGY shells or energy levels.

ANSWER:AROMATIZATION:Aromatization is a chemical reaction in which an aromatic system is formed. It can also refer to the production of a new aromatic moiety in a molecule which is already aromatic. Theoretically, this can be achieved by dehydrogenation of existing cyclic compounds (such as in converting cyclohexane into benzene) or by formation of new cyclic system (such as in the cyclotrimerization of acetylene to benzene);PRACTICALLY, other moieties are typically required to carry out such conversion, and other APPROACHES like applying condensation reactions are possible. Aromatization includes the formation of any aromatic system (including heterocyclic systems), and is not restricted to benzene and its derivatives.The substance now called benzene, C6H6, was known as a COMPONENT of Southeast Asian aromatic RESINS used in perfumery since the 15th century. It was first isolated and identified by MICHAEL Faraday in 1825 who named it bicarburet of hydrogen. In 1845, Charles Mansfield, working under August Wilhelm von Hofmann, isolated benzene from coal tar and began the industrial-scale production based on this method four years later.Over time, consensus developed that other substances were chemically related to benzene, comprising a diverse chemical family; Hofmann used the word "aromatic" for this family for the first time in 1856.HOPE IT HELPS YOU!!

xture , threre are  more than ONE COMPOUND .But in a PURE SUBSTANCE there is only one compound

anes and cycloalkanes, with the exception of cyclopropane, are probably the least chemically reactive CLASS of organic COMPOUNDS. DESPITE their relative inertness, alkanes undergo SEVERAL important reactions that are discussed in the following section.1. CombustionThe combustion of carbon compounds, especially hydrocarbons, has been the most important source of heat energy for human civilizations throughout recorded history. The practical importance of this reaction cannot be denied, but the massive and uncontrolled chemical changes that take place in combustion make it difficult to deduce mechanistic paths. Using the combustion of propane as an example, we see from the following equation that every covalent bond in the reactants has been broken and an entirely new set of covalent bonds have formed in the products. No other common reaction involves such a profound and pervasive change, and the mechanism of combustion is so complex that chemists are just beginning to EXPLORE and understand some of its elementary features.CH3-CH2-CH3   +   5 O2   ——>  3 CO2   +   4 H2O   +   heatTwo points concerning this reaction are important:1. Since all the covalent bonds in the reactant molecules are broken, the quantity of heat evolved in this reaction is related to the strength of these bonds (and, of course, the strength of the bonds formed in the products). Precise heats of combustion measurements can provide useful iinformation about the structure of molecules.

ential difference across the terminal of CELL is known as electromotive force in an OPEN circuit electromotive force transmit current both side and outside and inside circuit.electromotive force is always greater than potential differences. electromotive force does not DEPEND on the resistance of the circuit .

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is a SATURATED compound and ETHENE is an UNSATURATED compound. .........hope this help u......

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