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CCl2 is rightits a Reimer tiemer reactionthanks

dichlorocarbene it's a right answer because

Generation of chloroform carbanion by deprotonation of chloroform with a strong base.

CHCl3+OH−ightleftharpoonsH2O+:oversetominusCCl3

The chloroform carbanion generated, quickly undergoes alpha elimination to yield dichlorocarbene.

:oversetominusCCl3ightleftharpoonsCl−+:CCl2

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Non transition metal among AG

what is difference between transition metal and non transition metal

When lemon juice is added, it increasesmilk'sacidity aslemoncontains citric acid. Due to this lowering of pH, calcium causes precipitation of the caseinandthusmilkgets curdled. It's not uncommon for recipes to call forlemon juiceor vinegar to beaddedtomilk.

If we find lemon juice in milk. If you meet, then its curd will become and the milk will burst

The essentialfeatures of Monerainclude being unicellular, microscopic, and lacking a nucleus or other membrane-bound organelles such as mitochondria

The essentialfeatures of Monerainclude being unicellular, microscopic, and lacking a nucleus or other membrane-bound organelles such as mitochondria

The essentialfeatures of Monerainclude being unicellular, microscopic, and lacking a nucleus or other membrane-bound organelles such as mitochondria.

Characteristics of Monera

The Monerans are unicellular organisms.

They contain 70S ribosomes.

The DNA is naked and is not bound by a nuclear membrane.

It lacks organelles like mitochondria, lysosomes, plastids, Golgi bodies, endoplasmic reticulum, centrosome, etc.

They reproduce asexually by binary fission or budding.

The essentialfeatures of Monerainclude being unicellular, microscopic, and lacking a nucleus or other membrane-bound organelles such as mitochondria.

They are prokaryotesThey are unicellular and microscopicThe primitive type of nucleus is present

Turmeric is a flowering plant of the ginger family, Zingiberaceae, the roots of which are used in cooking.

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Ans :- Butter is a dairy product containing up to 80% butterfat which is solid when chilled and at room temperature in some regions, and liquid when warmed. It is made by churning fresh or fermented cream or milk to separate the butterfat from the buttermilk.

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it is a gel

260g Bhai please like my comment and if you will like my comment then I will like to tell you why the answer is 260g

Ans :- The chromophore is a region in the molecule where the energy difference between two separate molecular orbitals falls within the range of the visible spectrum. Visible light that hits the chromophore can thus be absorbed by exciting an electron from its ground state into an excited state.

Moles of O2 = 8/32= 1/4Moles of H2 = 4/2= 2Therefore Total moles of both gas(n) = 1/4 + 2 = 9/4Given :V = 1 dm3T = 300 KR = 0.083 bar dm3 K-1mole-1PV=nRTP = (9 x 0.083 x 300)/(4 x 1) = 56.025 bar

Homeostasis can be defined as a property of an organism or system that helps it maintain its parameters within a normal range of values.

It is key to life, and failures in homeostasis can lead to diseases like hypertension and diabetes.

Biochemical Oxygen Demand (BOD) is the amount of dissolved oxygen needed by aerobic biological organisms to break down organic material present in a given water sample at certain temperature over a specific time period

option 3

In theSF6total number of Sigma bond is 6 so hybridisationwill be SP3d2.SF6has 6 sigma bonds between Sulpur and Flourine atoms and no lone pair is left. Sohybridisationis equal to sp3d2, with octahedral geometry.

sp - sp2

why

explanation

1)The atom is the smallest object that retains the properties of an element. Atoms are composed of electrons and a nucleus. The nucleus contains protons and neutrons. All atoms are electrically neutral, because every atom has an equal number of electrons and protons.

2)A molecule is the smallest particle in a chemical element or compound that has the chemical properties of that element or compound. Molecules are made up of atoms that are held together by chemical bonds. These bonds form as a result of the sharing or exchange of electrons among atoms.

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1) The atom is the smallest object that retains the properties of an element. Atoms are composed of electrons and a nucleus. The nucleus contains protons and neutrons. All atoms are electrically neutral, because every atom has an equal number of electrons and protons.

2) A molecule is the smallest particle in a chemical element or compound that has the chemical properties of that element or compound. Molecules are made up of atoms that are held together by chemical bonds. These bonds form as a result of the sharing or exchange of electrons among atoms.

Body- centred Cubic Unit Cell. In a body-centred unit cell,8atoms are located on the8corners and 1 atom is present at the center of the structure. So total atoms in the body-centred unit cell will be: Since8atoms are present at the corners, each will contribute1/8thof the original volume of the cell.

.Temperature coefficient refers to the ratio of rate constants of a chemical reaction, affected by 10 degree rise in temperature.

.Represented by Kt+10C/Kt.

.It's value varies between 2–3.

.That is for every 10 degree rise in temperature, rate of reaction is doubled.

.Here, when temperature is increased from 25 to 35 degrees,i e 10 degree rise, no. of molecules possessing effective collisions increases, there by more no of molecules surpassing Activation Energy increases. Hence rate of reaction is doubled

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An aqueous solution is a solution in which the solvent is water. It is mostly shown in chemical equations by appending to the relevant chemical formula.

All substances are made up of matter and the fundamental unit of matter is the atom. The atom constitutes the smallest particle of an element. The atom is made of a central nucleus containing protons (positively-charged) and neutrons (with no charge). The electrons (negatively-charged with negligible mass) revolve around the nucleus in different imaginary paths called orbits or shells.

An element is a substance made up of atoms of one kind.

A molecule is formed when atoms of the same or different elements combine. A molecule is the smallest particle of a substance that can normally exist independently.

A compound is formed when atoms or molecules of different elements combine. In a compound, elements are chemically combined in a fixed proportion.Examples:

Hydrogen and oxygen are combined in a fixed proportion of 2:1 to form the compound water [H2O].

the smallest particle is called atom

(a) The beam ofrayswhich travel in a direction away fromanodetowardscathodewhen a gas taken in a discharge tube is subjected to the action of high voltage under low pressure are known ascanal rays. It is also calledanode rays. E.Goldstein discovered them. Charge son canal rays is positive and mass is one unit.

(b) Electrons are negatively charged and mass approximately is 1/2000 that of canal rays.

what are cathode Ray's ?who discovered it?

the lowest temperature that is theoretically possible, at which the motion of particles which constitutes heat would be minimal. It is zero on the Kelvin scale, equivalent to −273.15°C.

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When a magnetizing force is applied, the domains become aligned to produce a strongmagneticfield within the part. Iron, nickel,and cobalt areexamplesofferromagnetic materials. Components with thesematerials are commonly inspected using themagnetic particle method.

Inmaterialsthat exhibit antiferromagnetism, the magnetic moments of atoms or molecules, usually related to the spins of electrons, align in a regular pattern with neighboring spins (on different sublattices) pointing in opposite directions. ... Above the Néel temperature, thematerialis typically paramagnetic.

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Metals : A metal is a material that, when freshly prepared, polished, or fractured, shows a lustrous appearance, and conducts electricity and heat relatively well. Metals are typically malleable or ductile. A metal may be a chemical element such as iron, or an alloy such as stainless steel.

Example : Iron

Non-metal : Non-metals are those which lack all the metallic attributes. They are good insulators of heat and electricity. They are mostly gases and sometimes liquid. Some they are even solid at room temperature like, Carbon, sulfur and phosphorus.

it's not para meter it's pico meter Energy will be 6.62607004 × 10^−34 × 18 × 10^-12= 119.268 ×10^-46 J

C + O2 -----> CO2

32 gm oxygen is required for combustion of 12 gm of carbon

Then,Amount of oxygen required for combustion of 240 gm of carbon = (12/32)*240= 12*7.5 = 90 gm

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Diborane generally known as diborane is the chemical compound consisting of boron and hydrogen with the formula B2H6. It is a colorless, pyrophoric gas with a repulsively sweet odor. Synonyms include boroethane, boron hydride, and diboron hexahydride. Diborane is a key boron compound with a variety of applications.

if the sum of the 15th term 9th of an arithmetic progresson is136,and the 8th 14th term is 64find sum of 1st 20terms

hf is the answer.......

hf is the answer of your ques

c. Cd2+

Cadmium does not form a complex with ammonia

(a) Atomic number of this element is 12.

(b) 2A is group of this element.

(c) This element belongs to 3 period.

a)the atomic no. of this element is 12.b)the group of this element is group2c)3re period

The role of hydrochloric acid in the stomach .1. It helps to digest food.2. It creates acidic medium in our body.Pain is occur due to inproper digestion of food. we must take food after every three hours and do exercise to digest food.

The role of Hcl in our stomach is to kill pothogens (bacteria, viruses etc,) and some times our stomach release too much Hcl which causes stomach pain. It is cured by taking antacid which is normally milk of magnesium or some weak bases.

option D is the correct..answer..

-220< -215<-195<-185

x=1-(1+1/2)=-1/2 is the answer

a)antipyretics relive fever and lower body temperaturehence option bb)Phenol when reacts with formaldehyde that is methanal gives bakelite a polymerhence option b

In case of substituted aromatic compounds, the functional groups already present directs the next incoming group to a particular position in the aromatic ring. It is called directive influence of the group already attached to the benzene ring.

-CH3 group is an ortho and para directing group.

Inchemistry, particularly inbiochemistry, afatty acidis acarboxylic acidwith a longaliphaticchain, which is eithersaturatedorunsaturated. Most naturally occurring fatty acids have anunbranched chainof an even number of carbon atoms, from 4 to 28]Fatty acids are usually not found per se in organisms, but instead as three main classes ofesters:triglycerides,phospholipids, andcholesterol esters. In any of these forms, fatty acids are both important dietary sources of fuel for animals and they are important structural components forcells.