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geometrical isomers are cis - trans pairs

in which cis means - same substituents at same side..

and trans means - same substituents at different sides

so , option 4 is correct.

the answer is not seeing

please elaborate the formula you have used

Magnesium ribbon should be cleaned before burning in air in order to remove the basic magnesium carbonate coating on it. This layer should be removed so that the ribbon may readily combine with oxygen while burning in air. Basic magnesium carbonate layer consists of magnesium carbonate and magnesium hydroxide.

To remove all impurities from the magnesium and can burn eaisly

Thnx

Magnesium ribbon should be cleaned before burning in air to remove the basic magnesium carbonate coating on it. This layer should be removed so that the ribbon may readily combine with oxygen while burning in air. Basic magnesium carbonate layer consists of magnesium carbonate and magnesium hydroxide.

Magnesium ribbon should be cleaned before burning in air to remove the basic magnesium carbonate coating on it. This layer should be removed so that the ribbon may readily combine with oxygen while burning in air. Basic magnesium carbonate layer consists of magnesium carbonate and magnesium hydroxide.

To remove basic MgCo3 coating

Magnesium ribbonshould becleanedwith sandpaperbefore burningin the air. ... To remove theMagnesiumoxide layer from theribbonwhich may prevent or slow down theburningofmagnesium ribbon. Unwanted impurities deposited on themagnesium ribboncan be removed and only puremagnesiumcan be used for the reaction.

thnnx

define the following1mineral2 ores3 gangur

bro plz you can explain me in brief

Carbocations are always hungry forelectrons. The stability of carbocations increases from primary to secondary to tertiary. Here, option (c) shows the most stable carbocation because, it can easily withdraw electrons from two other carbon atoms and the more electronegative oxygen atom.

Carbocation stability depends on hyperconjugation. Hyperconjugation is the interaction of electrons present in sigma bonds of C-C or C-H atoms with the electrons present in an adjacent empty non-bonding p orbital, which gives extended molecular orbital, is the cause of stability of carbocations.

4 because no electronegative atoms attached

4 is the right answer

(2) is correct due to +m effect of methoxy group

3) is the correct answer

3 ) is the correct answer

3) is the right answer of the following

2 is correct answer option

2 is correct answer ......

2 is the correct answer

Sorry "2,4,5 - trimethyl hexane

answer is 2,3-dimethyl butane

Incomplete combustion is also a reaction between oxygen and fuel but the products arecarbon monoxide,waterand carbon. Incomplete combustion occurs when a combustion reaction occurs without a sufficient supply of oxygen.

Carbonfuels such aswood,coal,petroleumreleaseunburnt carbonparticles in the environment.

These particles are very dangerouspollutantsand cause respiratory diseases for example asthma.

When fuels areincompletelyburnt, they releasecarbon monoxide gasinto the atmosphere.

In the reactionMnO2 + 4HCl -> MnCl2 + Cl2 + 2H2O Cl (chlorine) is the substance which is oxidized from the HCl, and it is the reducing agent for the MnO2 as well. As Cl is the oxidized substance in HCl, thus it is the oxidizing agent in the reaction.

not 343 it is 373

Already I got an answer. Thank u for giving your answer

electrolyte

weak electrolytes strong electrolytesnon-electrolytes catalysts

Inh2othere is hydrogen bonding because oxygen has a high electronegativity(only second to flourine). so, the hydrogen atoms from other molecules ofwaterforms a hydrogen bonds with oxygen resulting in intermolecular hydrogen bonding. ... therefore atroom temperature h2ois aliquidandh2s is a gas.

The harmful substances dissolved in water causes infection and disease

Neutralization is a type of chemical reaction in which a strong acid and strong base react with each other to form water and salt. The neutralization of a strong acid and strong base has a pH equal to 7. The neutralization of a strong acid and weak base will have a pH of less than 7, and conversely, the resulting pH when a strong base neutralizes a weak acid will be greater than 7.

Aneutralization reactionis when an acid and a basereactto form water and a salt and involves the combination of H+ions and OH-ions to generate water. Theneutralization of a strong acid and strong base has a pH equal to 7.

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Isobutyric acid has a carboxylic acid group, which is polar, and can readily hydrogen bond. It can be extracted from the organic solvent diethyl ether by washing with a polar solution like water. Multiple small volume washes extract better than one large volume wash. Use of a second organic solvent, hexane, will not extract the isobutyric acid from the diethyl ether.

A. One 30 mL wash of water, incorrect. Multiple smaller volume washes will yield higher extraction results.

B. Three 10 mL washes of water, correct. Isobutyric acid will enter the aqueous layer and wash off of the organic layer of diethyl ether.

C. One 30 mL wash of hexane, incorrect. Hexane is another organic solvent like diethyl ether.

D. Three 10 mL washes of hexane, incorrect. See C.

The following are the reasons to avoid the use of chemical pesticides1) Pesticides don’t solve pest problems2) Pesticides are hazardous to our health3) Pesticides cause special problems for children.4) Pesticides contaminate our food.5) Pesticides are particularly hazardous for farmers, farm workers, and people who live near them.6) Pesticides are dangerous to pets.7) Pesticides contaminate our water8) Pesticides are not good for fish and birds.9) Pesticide “Health & Safety Testing” is conducted by chemical companies10) Pesticides just have too many secrets

Fungi, bacteria, protozoans, insects, worms destroy chemical pesticides in soil that cause human health problems and environmental problems.

Option B should be correct.as NaoH is strong Base.. it will give more OH- and that OH- will react with H+ of water to form H3O+

where is answer

how you get answers give an example of NaOH recurring on oh

The Kolbe–Schmitt reaction or Kolbe process is a carboxylation chemical reaction that proceeds by heating sodium phenoxide with carbon dioxide under pressure, then treating the product with sulfuric acid. The final product is an aromatic hydroxy acid which is also known as salicylic acid.

Compost:1)Plant and animal material decompose into garden soil through a process called composting. 2)Nitrogen- and carbon-rich by-products, such as plant stalks, vegetable peelings, egg shells, leaves and yard waste, combine to create an environment suitable for micro-organisms to break them down into humus, the rich brown soil plants need for optimal growth.

Aeration:a)Most composting systems require someone to turn the compost each week with a shovel or pitchfork to aerate the middle of the compost pile.b)Without aeration, the inner part of the pile would heat up above 160 degrees Fahrenheit and would kill the micro-organisms necessary for composting.

Fertilizer:a)Compost tea provides a nutrient-rich drink for established plants.

Convenience:a)Other composting methods slow down in very cold weather.

Expense:a)A traditional compost pile may require less of an investment than vermicomposting. b)Traditional piles require the expense of a garden hose, water and a pitchfork.

Vermicomposting:1)one method of creating compost, uses red worms (Eisenia foetida) or red wigglers (Lumbricus rubellus) to create compost. 2)Dampened carbon and nitrogen materials, such as newspaper strips and grass clippings, are layered in the compost bin before adding the worms.

Aeration:a)In a vermicomposting system, worms tunnel in the soil, creating pathways for air to travel so turning the pile is not necessary.b)Commercially available vermicompost bins contain screen-covered holes to allow oxygen into the bin.

Fertilizer:a)Vermicompost contains more nutrients than other forms of compost. b)Vermicompost is concentrated with high levels of phosphorous and nitrogen, and should be used sparingly. c)Vermicomposting also creates a concentrated liquid as a by-product of the composting process.

Convenience:a)Vermicomposting does not require as much space as traditional compost piles and can be done indoors or outside. b)It only requires a bin approximately 8 to 16 inches deep with 1- to 2-square-feet of surface area.c)Since vermicomposting can be done under a kitchen cabinet or in a heated garage, it is spared any inclement weather and can be done year-round.

Expense:a)Vermicomposting requires the purchase of a bin, a watering can and the purchase of the worms.

Siemens (S) has adimensionof M-1L-2T3A2where M is mass, L is length, T is time, and A is electric current

In organic chemistry, a carbonyl group is a functional group composed of a carbon atom double-bonded to an oxygen atom: C=O. It is common to several classes of organic compounds, as part of many larger functional groups. A compound containing a carbonyl group is often referred to as a carbonyl compound.

Many, but not all,metals reactwith acids.Hydrogengas is formed as themetal reactswith the acid to form a salt. Many, but not all,metals reactwith acids.Hydrogengas is formed as themetal reactswith the acid to form a salt.

it generally forms hydrides

Alkylhydrogenatoms bonded to a carbon atom in a a (alpha) position relative to acarbonylgroup display unusualacidity. ... In particular, \(\alpha\)hydrogensare weaklyacidicbecause the conjugate base, called an enolate, is stabilized though conjugation with the \(\pi\) orbitals of thecarbonyl.

As shown in figure insert two nails on the wooden or rubber cork and place it in a beaker. Now connect these iron nails with a bulb, a 6 volt battery and a switch using a wire. Now pour some alcohol or glucose such that the nails will dip into it. Now turn the switch on, you will see that the bulb will not glow. Now empty the beaker and add some HCl aqueous solution at this time the bulb will glow. This proves that an acid can conduct electricity while alcohols and glucose cannot, even when they are containing hydrogen

deforestation means:d) clearing of forests

(d)Clearing of forests

a planting more trees

SO2canact as both oxidizing as well as reducing agent since it has +4 oxidation state which is exactly between its highest oxidation state +6 and lowest oxidation state +2 ,Thusit can change its oxidation number either from +4 to-2(reduction) and +4 to+6 (oxidation) .

A reducing agent will reduce, and thereby get further oxidized in a redox reaction. If SO3 acts as a reducing agent, then Sulfur in SO3 should achieve an oxidation state higher than what it has in SO3 (+6).Oxidation state of sulfur in SO3 is VI (+6). This means that 6 electrons have already been stripped from the valence shell of sulfur. Electronic configuration of sulfur is 1s2, 2s2p6, 3s2p4. So, the entire complement of 6 electrons from the 3rd shell (3s2p4) have been lost from the sulfur in SO3. In order for SO3 to act as a reducing agent, it has to come up with one or more electrons to donate to the substrate. It will have to do so from its inner shells - 1s2, 2s2p6.We do not have a single example of electrons from a completed inner shell of an atom with any of the elements in the main group chemistry. So, it is highly unlikely that this will happen in the case of S(VI) in SO3.That is why SO3 can only act as an oxidizing agent (and not as a reducing agent), and happily accept one or more electrons.

tq so much

zinc is the strongest reducing agent

zinc is the strongest red. agent

Iodine(I) has a bigger atomic radius than Fluorene (F). Due to its greater size, the distance between the valence electron and the nucleus is great than Fluorene.Due to the large distance, when is makes a bond, the distance between H+ and the nucleus of I is greater as compared to F and H+.Due to large bond length, bond strength is low and, thus, it is easy to break. And therefore more reactive.While in F and H+, the bond length is significantly less and thus strengthening the bond. Therefore the bond is difficult to break.Therefore HI is better acid as the H+ is dissociated faster while HF is not a good acid due to its low dissociation enthalpy.

N-N sigma bond is weaker than P-P sigma bond due to the small bond length between the nitrogen atoms. The non-bonding electrons(lone pair of electrons) of both the atoms repel each other making it weaker than P-P sigma bond. This is why the catenation tendency is not present in Nitrogen.

But nitrogen also has a tendency to form strong pπ-pπ bonds with itself which is not present in other Group 15 elements as the overlapping between the large atoms is diffuse. So the N-N π-bond is stronger than P-P π-bond.

thank u

The hydrogen atoms in OH bond are ionisable and are acidic whereas the P-H bonds have reducing property.The number of P-H bonds is more in H₃P0₂ thanH₃PO₃.Therefore, it isstronger reducing agent thanH₃PO₃.

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For Bi +3 is more stable as compared to Sb. Inert pair effect being the reason. So bi has more tendency to get reduced so better oxidising agent

Due to the inert pair effect, Sb and Bi are more stable in +3 oxidation state as compared to the +5 state. But due to the presence offorbital electrons in Bi, its +3 is more stable than Sb(+3).That is why, Bi(V) tends to achieve Bi(III) state (i.e. reduction of Bi) for greater stability easily as compared to the Sb. since Bi (V) is undergoing self reduction, hence it is a stronger oxidising agent then Sb(V).