Which of the following is a nonpolar molecule? (a) HCl (b) CH3Cl (c) H2 (d) NH3

Which of the following is a nonpolar molecule?
(a) HCl
(b) CH3Cl
(c) H2
(d) NH3
by

1 Answer

Answer :

H2
by

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Which molecule has the greatest dipole moment (a) CH3Cl (b) CH3Br (c) CH3F (d) CH3I

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Last Answer : CH3F

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

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.

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Description : A nonpolar molecule is usually: w) hydrophilic x) soluble in water y) hydrophytic z) soluble in organic solvents

Last Answer : ANSWER: Z -- SOLUBLE IN ORGANIC SOLVENTS

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

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

Last Answer : nonpolar

The reagent needed to convert 2-butyne to cis-2-butene is : (a) H2/Pt (b) H2/Lindlar’s catalyst (c) Li/NH3 (d) Na/NH3

Description : The reagent needed to convert 2-butyne to cis-2-butene is : (a) H2/Pt (b) H2/Lindlar’s catalyst (c) Li/NH3 (d) Na/NH3

Last Answer : H2/Lindlar’s catalyst

Major gaseous pollutant of the thermal power station is (1) H2 S (2) NH3 (3) NO2 (4) SO2

Description : Major gaseous pollutant of the thermal power station is (1) H2 S (2) NH3 (3) NO2 (4) SO2

Last Answer : SO2

Which of NH3 and HCl has higher prevalence rate and why ?

Description : Which of NH3 and HCl has higher prevalence rate and why ?

Last Answer : By the rate of diffusion of an object, we mean how much the object has spread through any medium at any given time. The lower the density of an object, the lower the molecular mass, the higher the rate of diffusion ... ( 36.5) is high. Thus the rate of diffusion of NH 3 is higher than that of HCl .

Which of the following pairs of compounds could NOT be used to create a buffer solution? Would it be: w) HCL and NaCl (read: H - C - L and N - A - C - L) x) HCN and NaCN (read: H - C - N and N - A - C - N) y) NH3 and NH4Cl (read: N - H - 3 and N - H - 4 - C - L) z) HNO2 and NaNO2 (read: H - N - O -2 and N - A - N - O - 2)

Description : Which of the following pairs of compounds could NOT be used to create a buffer solution? Would it be: w) HCL and NaCl (read: H - C - L and N - A - C - L) x) HCN and NaCN (read: H - C - N and N - A - C - N) y) NH3 ... - H - 4 - C - L) z) HNO2 and NaNO2 (read: H - N - O -2 and N - A - N - O - 2)

Last Answer : ANSWER: W -- HCL AND NaCl (read: H - C - L and N - A - C - L) 

Zn + 2 HCl = H2 + ZnCl, is an example of which type of reaction? (1) Double displacement reaction (2) Combination reaction (3) Single displacement reaction (4) Decomposition reaction

Description : Zn + 2 HCl = H2 + ZnCl, is an example of which type of reaction? (1) Double displacement reaction (2) Combination reaction (3) Single displacement reaction (4) Decomposition reaction

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Which of the following reagents can be used to distinguish between chlorobenzene and allyl chloride? (a) H2/Ni(b) Br2 in CCl4(c) Zn/HCl(d) NH2NH2

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Last Answer : Br2 in CCl4

Cyclohexanol can be converted into cyclohexene by heating with (a) Zn(Hg) and HCl(b) Concentrated H2SO4(c) SOCl2(d) H2 and Ni

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Last Answer : Concentrated H2SO4

Lucas reagents is (a) HCl/NaNO2 (b) H2/Pd (c) HCl/ZnCl2 (d) H2/Pd/BaSO4

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Last Answer : HCl/ZnCl2

Which of the following has pH value 7? (1) Pure Water (2) H2 SO4 (3) Sodium Carbonate (4) HCl

Description : Which of the following has pH value 7? (1) Pure Water (2) H2 SO4 (3) Sodium Carbonate (4) HCl

Last Answer :  Pure Water

Aquaregia is a mixture of the following in the ratio 1 : 3 by volume (1) conc. HNO3 and conc. HCl (2) conc. HNO3 and conc. H2 SO4 (3) dil. HCl and dil. HNO3 (4) conc. HCl and conc. HNO3

Description : Aquaregia is a mixture of the following in the ratio 1 : 3 by volume (1) conc. HNO3 and conc. HCl (2) conc. HNO3 and conc. H2 SO4 (3) dil. HCl and dil. HNO3 (4) conc. HCl and conc. HNO3

Last Answer : dil. HCl and dil. HNO3

Which among the following is used as a catalyst in the production of high octane fuels? (1) HNO3 (2)H2 SO4 (3) HCl (4) HF

Description : Which among the following is used as a catalyst in the production of high octane fuels? (1) HNO3 (2)H2 SO4 (3) HCl (4) HF

Last Answer : H2 SO4

What is a nonpolar molecule?

Description : What is a nonpolar molecule?

Last Answer : A nonpolar molecule is a molecule in which the electrons are shared equally between the atoms, resulting in no partial charges and a symmetrical shape.

Which formula represents a nonpolar molecule?

Description : Which formula represents a nonpolar molecule?

Last Answer : H-H

How many moles of H2 and N2 can be formed by the decomposition of 0.145 moles of ammonia, NH3?

Description : How many moles of H2 and N2 can be formed by the decomposition of 0.145 moles of ammonia, NH3?

Last Answer : All together now… WE WILL NOT DO YOUR HOMEWORK

What is the maximum amount of NH3 gas formed by mixing of 14 g N2 and 6 g H2 gases is?

Description : What is the maximum amount of NH3 gas formed by mixing of 14 g N2 and 6 g H2 gases is?

Last Answer : N2(g) + 3H2(g) ==> 2NH3(g) is the balanced equation for thisreaction.14 g N2 x 1 mole N2/28 g = 0.5 moles N2 present6 g H2 x 1 mole H2/2 g = 3 moles O2 presentIn this situation, the amount of N2 ... by the amount of N2.0.5 moles N2 x 2 moles NH3/1 mole N2 = 1 moles NH3 is themaximum amount of NH3.

Which was absent in the atmosphere at the time of origin of life? (a) NH3 (b) H2 (c) O2 (d) CH4

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From his experiments, S.L. Miller produced amino acids by mixing the following in a closed flask. (a) CH4, H2, NH3 and water vapor at 800°C (b) CH3, H2, NH4 and water vapor at 800°C (c) CH4, H2, NH3 and water vapor at 600°C (d) CH3, H2, NH3 and water vapor at 600°C

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Coke oven gas burns with a yellowish flame, because of the presence of (A) CO2 (B) CH4 (C) H2(D) NH3

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Which of the following can be regarded as gas so that gas laws could be applicable, within the commonly encountered temperature limits.  (a) 02, N2, steam, C02  (b) Oz, N2, water vapour  (c) S02, NH3, C02, moisture  (d) 02, N2, H2, air  (e) steam vapours, H2, C02.

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.Miller and Urey performed an experiment to p[rove origin of life.They took gases NH3 and H2 along with

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Why NH3 has a higher boiling point than CH4 and HCl?

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In the Bayer's process, bauxite is digested under pressure using (A) H2SO4 (B) NaOH (C) NH3 (D) HCl

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Which of the following can be made by the action of CH3Cl on benzene in the presence of aluminium chloride? (a) Ethylbenzene (b) o-Xylene (c) Chlorobenzene (d) m-Xylene

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Which of the following reagents will react with methyl group rather than thebenzene ring in methylbenzene?(a) Chlorine in the presence of uv light(b) CH3Cl in the presence of AlCl3(c) CH3COCl in the presence of AlCl3(d) Hydrogen in the presence of nickel

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Which is the most reactive alkyl halide in a SN1 reaction? (a) CH3F (b) CH3Br (c) CH3I (d) CH3Cl

Description : Which is the most reactive alkyl halide in a SN1 reaction? (a) CH3F (b) CH3Br (c) CH3I (d) CH3Cl

Last Answer : CH3I

Which of the following will have the lowest boiling point? (a) CH3Cl (b) CH4 (c) CH2Cl2 (d) CHCl3

Description : Which of the following will have the lowest boiling point? (a) CH3Cl (b) CH4 (c) CH2Cl2 (d) CHCl3

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Point group D3h belong to the molecule a. BF3 b. NH3 c. CHCl3 d. CH3

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Point group C2v belong to the molecule a. H2O b. BeH2 c. NH3 d. C2H2

Description : Point group C2v belong to the molecule a. H2O b. BeH2 c. NH3 d. C2H2

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What kind of chemical reaction is shown Mg plus 2 HCl - mgCl2 plus H2?

Description : What kind of chemical reaction is shown Mg plus 2 HCl - mgCl2 plus H2?

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The metal that does not give H2 on treatment with dilute HCl is (a) Zn (b) Fe (c) Ag (d) Ca

Description : The metal that does not give H2 on treatment with dilute HCl is (a) Zn (b) Fe (c) Ag (d) Ca

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he metal does not give H2 on treatment with dilute HCL is?

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Explain the formation of H2 molecule on the basis of valence bond theory.

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Use the information and data given below to answer the questions • Stronger intermolecular forces result in higher boiling point • Strength of London forces increases with the number of electrons in the molecule • Boiling point of HF ,HCl, HBr and HI are 293K,189K,206K and 238K respectively (a) Which type of intermolecular forces are present in the molecules HCl, HBr and HI? (b) Looking at the trend of boiling points of HCl, HBr and HI, explain, out of dipole interaction and London interaction, which one predominant here? (c) Why is the boiling point of HF highest while that of HCl lowest?

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Fatty liver is also caused by (A) CH3Cl (B) CCl4 (C) Na2SO4 (D) Riboflavin

Description : Fatty liver is also caused by (A) CH3Cl (B) CCl4 (C) Na2SO4 (D) Riboflavin

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1. Who is the executive head of a Municipal Corporation? 2. What is the maximum number of hydrogen bonds in a H2 O molecule? 3. How is the contribution of agriculture to India’s economy? 4. Which tributary of the Ganga System flows northwards? 5. Which Mughal ruler banned music and dancing?

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Which of the following is true when HCL is passed through water. (i) It does not ionize in the solution as it is a covalent compound (ii) It ionizes in the solution (iii) It gives both hydrogen and hydroxyl ions in the solution (iv) It forms hydronium ion in the solution due to the combination of hydrogen ion with water molecule. (a) (i) only (b) (iii) only (c) (ii) and (iv) only (d) (iii) and (iv)

Description : Which of the following is true when HCL is passed through water. (i) It does not ionize in the solution as it is a covalent compound (ii) It ionizes in the solution (iii) It gives both hydrogen and hydroxyl ions in the solution ... ) (i) only (b) (iii) only (c) (ii) and (iv) only (d) (iii) and (iv)

Last Answer : (c) (ii) and (iv) only

How would you remove nonpolar impurities from an amine ?

Description : How would you remove nonpolar impurities from an amine ?

Last Answer : Ans.--- Adding HCl , amine will form salt whereas nonpolar impurities will not react . Amines can be regenerated by adding NaOH . 

A wax is(a) a nonpolar solid (b) a long-chain alcohol (c) a triacylglycerol (d) none of these

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Which of the following best describes the carbon-chlorine bond of an alkyl chloride? (a) nonpolar; no dipole (b) polar; δ+ at carbon and δ– at chlorine (c) polar; δ– at carbon and δ+ at chlorine (d) ionic

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Which of the following improperly describes the physical properties of an alkyne? (a) relatively nonpolar (b) nearly insoluble in water (c) less dense than water (d) insoluble in most organic solvents

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Last Answer : insoluble in most organic solvents

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Last Answer : (a) & (c)

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

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Last Answer : ANSWER: Y -- POLAR COVALENT

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

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