b. community of NEET. Dr Bob Can you please confirm for me that only NH3 has a boiling point that does not fit the general trend from these choices NH3 PH3 SbH3 AsH3 many thanks andy I am picking NH3 because of the reason that the larger the compound the greater the boiling . Get the detailed answer: The boiling point of NH3, PH3, AsH3, and SbH3 are -33.4°C, -87.5°C, -62.4°C, and -18.4°C, respectively. Upvote (0) Was this answer helpful? over here on EduRev! is done on EduRev Study Group by NEET Students. Rank the molecules from highest to lowest boiling point. (2) As the size of element increases, the strength of M-H bond decreases and thus stability decreases. Therefore, boiling point increases.Though NH 3 has strong H-bonding but boiling point of SbH 3 is highest due to highest molecular weight. Explanation: Boiling points of nitrogen family generally increases on moving down the group but boiling point of NH3 is higher than PH3 and AsH3 due to hydrogen bonding. Than it would go, AsH3 and then SbH3. Explain the variation of their boiling points in terms of the types of intermolecular forces. Stronger IM forces take more energy input to separate the liquid particles into gas, thus raising boiling point. The hydrides of group 5A are NH3, PH3, ASH3, and SBH3. Hence, the boiling point of of $\ce{SbH3}$ is greater than that of $\ce{NH3}$. AsH3 comes first because it has a smaller atomic radii, therefore making it a more compacted molecule and harder to break apart. The boiling point of ammonia, NH3 , is significantly higher than that of analogous compounds from the same group, e.g., PH3 , AsH3 , and SbH3 . Does it mean SbH3 > NH3 > AsH3 > PH3 when ranking viscosity too? Solution: Boiling point of NH 3 is high due to intermolecular hydrogen bonding. Arrange the following hydrides of nitrogen family in increasing order of boiling points NH3,PH3,AsH3,SbH3. Reaction between acetone and methyl magnesium chloride followed by hydrolysis will give : Identify the correct statements from the following: Which of the following set of molecules will have zero dipole moment ? Answer. SbH3 NH3 AsH3 PH3 Explanation: The boiling point of NH3 is higher than that predicted by periodic trends alone because of hydrogen bonding. answr. Which of the following is incorrect (A) PH3 AsH3 NH3 SbH3 (Boiling point) | (B) HCI HBr HI H2O (Melting point) (C) PH3 AsH3 SbH3 NH3 (heat of vaporization) (D) H2Te H2Se Answer Our experts are building a … asked Jan 2, 2019 in Chemistry by Akshat2613 (568 points) 0 votes. N and P both are Group 15 elements! In others it varies directly with molecular weight of molecule due to increased van der Wall’s force. NH3 first because it has HB, Dipole and Dispersion. To rank items as equivalent, overlap them. Which one of the following liberate bromine when reacted with $KBr$? If the answer is not available please wait for a while and a community member will probably answer this Get Instant Solutions, 24x7. The Questions and agree to the. (1) N H 3 has higher boiling point than A s H 3 and P H 3 on account of H-bonding. NH3 PH3 SbH3 AsH3 I am going with NH3 as i think its to do with "the larger the compound the greater the boiling point"(Vander waals forces) Given that the ionic product of $Ni(OH)_2$ is $2 \times 10^{-15}$. Which of the following is incorrect (A) PH3 AsH3 NH3 SbH3 (Boiling point) | (B) HCI HBr HI H2O (Melting point) (C) PH3 AsH3 SbH3 NH3 (heat of vaporization) (D) H2Te H2Se . soon. 1 answer. … Highest viscosity: NH3 > SbH3 > AsH3 > PH3. NH3 is a predominantly a hydrogen bond therefore, it has the highest boiling point of these compounds. are solved by group of students and teacher of NEET, which is also the largest student community of NEET. 15. which one of the following should have the lowest boiling point? Helium is used in balloons in place of hydrogen because it is, Decreasing order of stability of hydrogen halide is, When $Br_2$ is treated with aqueous solutions of $NaF, NaCl$ and $NaI$ separately, In Wolff‐Kishner reduction, the carbonyl group of aldehydes and ketones is converted into. If the supply of oxygen is limited, $ {{H}_{2}}S $ reacts with $ {{O}_{2}} $ to form, Ozone is used for purifying water because. The hydrides of group 5A are NH3, PH3, AsH3, and SbH3. Boiling point elevation and freezing point depression, Theory & Procedure, Boiling point of Organic compound, To determine melting point of ice and boiling point of water. The boiling point of NH3, PH3,AsH3 and SbH3 are respectively -33.4 oC,-87.5 oC, -62.4 oC, -18.4oC. S b H 3 has highest boiling point on account of highest molecular weight. This force is least in PH 3 & highest in SbH 3. The Questions and Answers of The order of boiling point among NH3 PH3 AsH3 SbH3 BiH3? Therefore boiling point of SbH3 is more than that of NH3. Reason : NH₃ is a polar molecule with strong Hydrogen bonding. The correct order of reactivity of halogen is. Arrange them from highest to lowest boiling point. NH 3 > PH 3 > AsH 3 > SbH 3. Why? Arrange them from highest to lowest boiling point. By continuing, I agree that I am at least 13 years old and have read and Which one of the following is the most electronegative element configuration? Identify compound X in the following sequence of reactions: Identify a molecule which does not exist. H2O CO2 CH4 Kr NH3. Apart from being the largest NEET community, EduRev has the largest solved Answers of The order of boiling point among NH3 PH3 AsH3 SbH3 BiH3? Chemistry Until I found this: Figure taken from General Chemistry by Raymond Chang From the figure, it seems that NH3 has lower boiling point than SbH3. Arrange the group 5A hydrides PH3, SbH3, NH3, and AsH3 from highest to lowest molar mass. ... Hydrogen bond in NH3 is capable of making the boinling point of NH3 higher than PH3 and AsH3. Electronegativity & Polarity NH3 Exception Group 5A Hydride Boiling Points What is molar mass? Which of the following will not be oxidized by ozone ? In general, melting and boiling points of compounds increase down the group, but because of hydrogen bonding, $\ce{NH3}$ has a higher boiling point than $\ce{PH3}$ and $\ce{AsH3}$, but the atomic mass of $\ce{Sb} \gg \ce{N}$. Definition: The total mass of a molecule Units: g/mol Molar mass is directly proportional to boiling temperature SbH3 > AsH3 > PH3 > NH3 All the molecules are polar Trigonal pyramidal • View Available Hint(s) Reset Help SbH, Аянз PH3 NH3 … 23%. are solved by group of students and teacher of NEET, which is also the largest student Boiling point is a direct result of a molecule's intermolecular forces, which hold molecules together. Rank the molecules from highest to lowest boiling point. EduRev is a knowledge-sharing community that depends on everyone being able to pitch in when they know something. In my textbook it is written that the order of basic strength of pnictogen hydrides is $$\ce{NH3 > PH3 > AsH3 > SbH3 > BiH3}$$ I tried but could not find any explanation as to why this This discussion on The order of boiling point among NH3 PH3 AsH3 SbH3 BiH3? (3) Basicity decreases down the group. Highest to lowest - SbH3, AsH3, PH3, and NH3 Step 3: The boiling point … The order of boiling point among NH3 PH3 AsH3 SbH3 BiH3? The atomic radiusis: Find out the solubility of $Ni(OH)_2$ in 0.1 M NaOH. Answer verified by Toppr. Thus, order of boiling point is PH3 < AsH3 < NH3 < SbH3 is done on EduRev Study Group by NEET Students. Boiling point is related to intermolecular forces. On electrolysis of dil.sulphuric acid using Platinum (Pt) electrode, the product obtained at anode will be: An element has a body centered cubic (bcc) structure with a cell edge of 288 pm. Arrange the following hydrides of nitrogen family in increasing order of boiling points NH3, PH3, AsH3, SbH3. Explanation : We know that in Periodic Table from going up to down electronegativity decreases! To rank items as equivalent, overlap them. NH3 have B.P = - 33°c which is greater than of PH3 i.e B. P = -83°C! Classification of Elements and Periodicity in Properties, The boiling points of the following hydrides follow the order of. Which of the following has a boiling point which does not fit the general trend. Imagine you are travelling on a cruise along with a few strangers and suddenly astorm hits your ship. You can study other questions, MCQs, videos and tests for NEET on EduRev and even discuss your questions like This discussion on The order of boiling point among NH3 PH3 AsH3 SbH3 BiH3? The molecule SbH3 actually has a higher boiling point than NH3 when analyzed quantitatively (rather than qualitatively). $Reason$: Chlorine has electron donating resonance (+ R ) effect. 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