Organic compounds are (1) Covalent compounds (2) Ionic compounds (3) Co-ordination compounds (4) Interstitial compounds

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Answer :

Covalent compounds

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Description : Organic compounds are - (1) Covalent compounds (2) Ionic compounds (3) Co-ordination compounds (4) Interstitial compounds

Last Answer : (1) Covalent compounds Explanation: Organic compounds are always covalent compounds because it is more energetically favorable for carbon to covalently bond. Organic compounds, such as carbohydrates, lipids, proteins and nucleic acids, are all examples of covalent compounds.

Description : Which of the following compounds has ionic bond. `pi-`bond, co-ordinate bond and covalent bond:-

Last Answer : Which of the following compounds has ionic bond. `pi-`bond, co-ordinate bond and covalent bond:- A. `HNO_(2)` B. `NaNO_(3)` C. `KNO_(2)` D. `MgCl_(2)`

Description : Define co-ordination covalent bond.

Last Answer : Co-ordination covalent bond is formed by the mutual sharing of pair of electrons between two atoms contributed by only one of the combining atoms.

Description : Define characteristic of Ionic & covalent compounds.

Last Answer : Characteristics Of Ionic Compounds : Physical State : Ionic compounds are solids at room temperature. In crystals the oppositely charged ions are mutually surrounded by each other in orderly ... tetrachloride. Inter Molecular Forces : They have weak intermolecular forces between bonded atoms.

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Last Answer : Co-ordination compounds `[Pt(NH_(3))_(3)(NCS)]` and `[Pt(NH_(3))_(2) Cl_(2) ... isomerism B. linkage isomers C. optical isomerism D. hydrate isomerism

Description : Are organic compounds electrolytic or covalent substances ?

Last Answer : Organic compounds are covalent substances.

Description : Which of the following is not a characteristic of organic compounds? (a) They usually have low melting points. (b) They usually are only slightly soluble or insoluble in water. (c) If water ... they seldom conduct an electric current. (d) Bonds which bind the atoms together are nearly always ionic.

Last Answer : Bonds which bind the atoms together are nearly always ionic.

Description : Is Co(s) ionic or covalent or metallic?

Last Answer : Need answer

Description : Mark the compound which posses ionic, covalent and co–ordinate bond:

Last Answer : NH4Cl

Description : Covalent bonds are mainly found in (a) Organic compounds (b) Inorganic compounds (c) Electrolytes (d) None of the above

Last Answer : Ans:(a)

Description : Which one of the following pairs is matched correctly? a. Ions - covalent bonds b. Carbon - organic compounds c. Glucose - enzyme d. Thymine - amino acid

Last Answer : b. Carbon - organic compounds

Description : When a co-ordination compound CrCl3.6H2O is mixed with AgNO3, 2 moles of AgCl are precipitated per mole of the compound. Write (i) Structural formula of the complex. (ii) IUPAC name of the complex. -Chemistry

Last Answer : (i) The complex formed on mixing a coordination compound CrCl3.6H2O with AgNO3 is as follows CrCl3.6H2O + AgNO3 → [Cr(H2O5)Cl]Cl2. H2O (ii) Pentaaquachloridochromium (III) chloride monohydrate

Description : How is the stability of a co-ordination compound in solution decided ? How is the dissociation constant of a complex defined? -Chemistry

Last Answer : Stability of a complex in solution means the measure of resistance to the replacement of a ligand by some other ligand. This stablility can be expressed in terms of equilibrium constant. Let the ... is its tendency to donate electron pair and therefore, more is the stability of the complex.

Description : Mention any four characteristics of Co- Ordination Compound

Last Answer : (1) Hard ness of water is estimated by simple titration with Na2 EDTA.  (2) Extraction of metals like Ag and Au make use of complex formation .  (3) Purification of ... compounds  (4) Biological application like pigment formation photosynthesis, Chloropyll.  Haemoglobin pigment of blood . 

Description : What is meant by the term Co-ordination no?

Last Answer :  Ans:- No of atoms (sphere) by which the central atom is surrounded. 

Description : (1) the action of ultraviolet rays on oxygen Explanation: The majority of tropospheric ozone formation occurs when nitrogen oxides (NOx), carbon monoxide (CO ) and volatile organic compounds (VOCs), such as xylene, ... violet rays. NOx, CO, and VOCs are called ozone precursors. CO + 2O2 + CO2 + O3

Last Answer : Water is not effective in extinguishing a fire caused by petrol because - (1) the flame is too hot for water to cool it down (2) water and petrol react chemically (3) water and petrol are ... (4) water and petrol are immiscible with each other and petrol which forms the upper layer continues to burn

Description : Bonds formed by the sharing of an electron pair between two atoms are known as - (1) Covalent bonds (2) Ionic bonds (3) Weak bonds (4) None of the above

Last Answer : (1) Covalent bonds Explanation: Bonds which are formed by the sharing of an electron pair between two atoms are known as covalent bonds.

Description : NaCI has _______. (1) Non-polar bonds (2) Polar covalent bonds (3) Metallic bonds (4) Ionic bonds

Last Answer : (4) Ionic bonds Explanation: Sodium Chloride, NaCl. The classic case of ionic bonding, the sodium chloride molecule forms by the ionization of sodium and chlorine atoms and the attraction of the resulting ions.

Description : Mark the compound which possesses ionic, covalent and coordinate bonds. (1) NH4C1 (2) SO3 (3) SO2 (4) H2O

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Description : Ethylene is a molecule. (1) polar (2) ionic (3) covalent (4) nonpolar

Last Answer : (4) nonpolar Explanation: Ethylene (C2H4) is a nonpolar molecule. This is because, unlike a polar molecule, it has an even distribution of electrical charges. Since, the double bond is between two carbon ... in between those to carbon atoms. As a result, ethylene is a non-polar and linear molecule.

Description : When does ionic character develop in covalent bond?

Last Answer : Ans. When the difference in electro negativity of the combining atom is more than 1.9 it develops 50 % ionic character .

Description : Which rule explains the covalent character of ionic bond ?

Last Answer : Ans. Fajan’s Rule

Description : Why are transition metal fluorides are ionic in nature where as chlorides and bromides are covalent in nature . 

Last Answer : Ans - It is because of fluorine is most electronegative where as Cl and Br are less electro negative . Greater the difference in electro negativity more will be ionic character .

Description : What type of bonding is most important in CH3CH2CH2CH2CH2CH3? (a) ionic (b) hydrogen (c) covalent (d) polar

Last Answer : covalent

Description : Define Ionic Bond & Covalent Bond how it is formed explain with example.

Last Answer : Ans : Ionic Bond OR Electrovalent Bond : The attraction that binds oppositely charged ions together is termed as electrovalent bond or ionic bond. It is formed between the atoms with electronegativity ... most shell by means of sharing of unpaired electrons & thus a covalent bond is formed.

Description : Sodium chloride is an example of what kind of compound? w) ionic x) covalent y) polyatomic z) monatomic

Last Answer : ANSWER: W -- IONIC

Description : The characteristic bonds in nonmetal oxides are which of the following types? w) network x) covalent y) ionic z) coordinate covalent

Last Answer : ANSWER: X -- COVALENT

Description : The bond most likely to be formed when two atoms differ SOMEWHAT in their tendency to attract electrons is: w) nonpolar ionic x) polar ionic y) polar covalent z) nonpolar covalent

Last Answer : ANSWER: Y -- POLAR COVALENT

Description : A bond in which there is an unequal attraction for the shared electrons and a resultant unbalanced distribution of charge is which one of the following types of bonds? w) ionic x) pure covalent y) nonpolar covalent z) polar covalent 

Last Answer : ANSWER: Z -- POLAR COVALENT 

Description : Which class of solids could have London Forces the attractive forces between particles in crystal lattice positions? w) ionic x) covalent y) metallic z) molecular

Last Answer : ANSWER: Z -- MOLECULAR

Description : The type of crystal lattice exemplified in a diamo is: w) ionic crystal x) covalent network crystal y) metallic crystal z) covalent molecular crystal

Last Answer : ANSWER: X -- COVALENT NETWORK CRYSTAL

Description : The atoms in sugar are bound by what type of bond? w) ionic x) hydrogen y) covalent z) van der Waals

Last Answer : ANSWER: Y -- COVALENT

Description : The bond in Fluorine is which of the following types? Is it w) ionic x) nonpolar covalent y) polar covalent z) covalent network

Last Answer : ANSWER: X -- NONPOLAR COVALENT

Description : The bond in hydrogen chloride is which of the following types? Is it w) ionic x) nonpolar covalent y) polar covalent z) covalent network

Last Answer : ANSWER: Y -- POLAR COVALENT 

Description : Forces in ionic crystalline solids are primarily which of the following? w)covalent x)electrostatic y)Van der Waals z)magnetic

Last Answer : ANSWER: X -- ELECTROSTATIC

Description : Ethylene is a ______ molecule. (1) polar (2) ionic (3) covalent (4) nonpolar

Last Answer : nonpolar

Description : The complex that exhibits Co-ordination isomerism is

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Description : The oxidation number and co-ordination number of chromium in complex ion `[Cr(C_(2)O_(4))_(2)(H_(2)O)_(2)]^(-)` are

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Description : `NiCl_(2) overset(KCN)to "complex"A` `NiCl_(2) underset("excess") overset(KCl)to "complex"B` A & B complexes have the co-ordination number 4. The hybr

Last Answer : `NiCl_(2) overset(KCN)to "complex"A` `NiCl_(2) underset("excess") overset(KCl)to "complex"B` A & B complexes have ... ^(2) & sp^(3)` D. both `sp^(3)`

Description : Co-ordination number of Cr in `CrCl_(3^.)5H_(2)O` is six. The volume of 0.1 N `AgNO_(3)` needed to ppt. the chorine in outer sphere in 200 ml of 0.01

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Description : In the complex `[CoCl_(2)(en)_(2)]Br`, the co-ordination number and oxidation state of cobalt are :

Last Answer : In the complex `[CoCl_(2)(en)_(2)]Br`, the co-ordination number and oxidation state of cobalt are : A. 6 and +3 B. 3 and +3 C. 4 and +2 D. 6 and +1

Description : Co-ordination number of platinum in `[Pt(NH_(3))_(4)Cl_(2)]^(2+)` ion is :

Last Answer : Co-ordination number of platinum in `[Pt(NH_(3))_(4)Cl_(2)]^(2+)` ion is : A. 4 B. 2 C. 8 D. 6

Description : What is the structure of cscl and give the co-ordination number of Cscl ?

Last Answer : The structure of cscl is Body Centered Cubic and the Co- ordination number of CsCl is 8

Description : What is structure of Nacl and give the co-ordination number of Nacl ?

Last Answer : The structure of Nacl is face centered Cubic and Co- ordination number of Nacl is 6

Description : What is Co-ordination number ?

Last Answer : The number of appositively charged ions surrounded a particular ion in an ionic crystal lattice is called co- ordination number

Description : What is gigantism?

Last Answer : Gigantism is a condition of the body in which the growth rate is very high due to the over secretion of growth hormone prior to puberty.

Description : Mention the two methods of co-ordination of organ system in multi-cellular organisms.

Last Answer : Co-ordination of various organ systems in multi-cellular organisms is brought about in two ways a) Control by nervous system b) Control by endocrine system

Description : Give an example of irritability.

Last Answer : If an earthworm is touched, it moves away from the place. Plants grow towards the light.

Description : Explain the path of co-ordination through nervous system and endocrine system?

Last Answer : Co-ordination through Nervous System: - i) Sensory organs (receptors) receive stimuli form environment. i.e. ears receive sounds. ii) Sensory organs (receptors) send this information to brain ... special organs called target organs or target sites. iv) Target organs or sites produce response. 

Description : Name some systems of co-ordination? OR By which systems coordination is produced in animals.  

Last Answer : i) Nervous System.  ii) Endocrine System