3 g of hydrocarbon on combustion in excess of oxygen produces 8.8 g of CO2 and 5.4 g of H₂O. The data illustrate the law of —

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Chandan Asked Oct 6, 2023

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Ammonia contains 82.35% of nitrogen and 17.65% hydrogen. Water contains 88.9% of oxygen and 11.1% of hydrogen. Nitrogen dioxide contains 63.15% of oxygen and 36.85% of nitrogen. Show by calculations from these data which law of chemical combination is verified.

Chandan Asked Oct 6, 2023

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ALOK_RAJ Asked Nov 16, 2021

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If a LPG cylinder contains a mixture of butane and isobutane, then the amount of oxygen that would be required for complete combustion of 1.16 kg of mixture will be :

ALOK_RAJ Asked Nov 16, 2021

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Aayush Asked Feb 7

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How much volume of oxygen will be required for complete combustion of 40L of acetylene (C2H2) and how much volume of carbon dioxide will be formed. All volumes are measured at STP

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Chandan Asked Oct 7, 2023

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If a certain oxide of nitrogen weighing 11 g yields 5.6 litres of nitrogen at N.T.P. and another oxide of nitrogen weighing 15 g yields the same volume of oxygen at N.T.P., show that the data supports the law of multiple proportions.

Chandan Asked Oct 7, 2023

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Aayush Asked Jan 3

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The solubility of $\left[ Co \left( NH _{3}\right)_{4} Cl _{2}\right] ClO _{4}$ ____________, if the $\lambda_{ Co \left( NH _{3}\right)_{4} Cl _{2}^{+}}=50, \lambda_{ ClO _{4}{ }^{-}}=70$ and the measured resistance was $33.5 \Omega$ in a cell with cell constant of $0.20$ is ____________

Aayush Asked Jan 3

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Chandan Asked Oct 18, 2023

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What is the difference between Combustion and Oxidation? Give two oxidation reactions of carbon compounds.

Chandan Asked Oct 18, 2023

by Chandan

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Aayush Asked Jan 5

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20mL of a gaseous hydrocarbon was exploded with excess of oxygen and the mixture cooled. There was a contraction of 40mL. On treatment with KOH, there was a further contraction of 40mL. Deduce the molecular formula of hydrocarbon.

Aayush Asked Jan 5

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Aayush Asked Jan 31

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Lithium only forms monoxide when heated in oxygen. Sodium forms monoxide and peroxide in excess of oxygen. Other alkali metals form superoxide with oxygen i.e. MO2.

Aayush Asked Jan 31

by Aayush

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Aayush Asked Apr 11

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The element X is trivalent. 9.0 g of the element combines with 8.0 g of oxygen. The atomic weight of X is, therefore :

Aayush Asked Apr 11

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Chandan Asked Sep 29, 2023

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3.7g of an oxide of a metal was heated with charcoal. The liberated CO2 was absorbed in caustic soda solution and weighed 1.0g

Chandan Asked Sep 29, 2023

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ALOK_RAJ Asked Sep 2, 2023

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An organic compound CxH2yOy was burnt with twice the amount of oxygen needed for complete combustion to CO2 and H2O.

ALOK_RAJ Asked Sep 2, 2023

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Chandan Asked Oct 7, 2023

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Hydrogen and oxygen are known to form two componds. The hydrogen contents of the two compounds are 42.9% and 27.3% respectively, Show that this data is in agreement with law of multiple proportions.

Chandan Asked Oct 7, 2023

by Chandan

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Chandan Asked Sep 16, 2023

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Difference between Respiration and Combustion.

Chandan Asked Sep 16, 2023

by Chandan

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ALOK_RAJ Asked Sep 2, 2023

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60mL of a mixture of CO and H2 yielded 20mL of CO2 after explosion with an excess of oxygen.

ALOK_RAJ Asked Sep 2, 2023

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Aayush Asked Feb 1

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Different proportions of oxygen in the various oxides of nitrogen prove the law of —

Aayush Asked Feb 1

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Aayush Asked Feb 2

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Illustrate the law of definite proportions from the following data —

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Aayush Asked Apr 11

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1.0 g of hydrogen is heated to combine with 80.0 g of bromine and 1.0 g of calcium (valency =2) combines with 4.0 g of bromine.

Aayush Asked Apr 11

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Aayush Asked Jan 4

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Acetic acid has $K _{ a }=1.8 \times 10^{-5}$ while formic acid has $K _{ a }=2.1 \times 10^{-4}$.

Aayush Asked Jan 4

by Aayush

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Chandan Asked Aug 8, 2023

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All hydrocarbon burnt to produce ...

Chandan Asked Aug 8, 2023

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Chandan Asked Oct 15, 2021

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विभिन्न प्रकार के हाइड्रोकार्बन के नाम उदाहरण सहित लिखिए। Vibhinn Prakar Ke Hydrocarbon Ke Naam Udaharan Sahit Likhiye

Chandan Asked Oct 15, 2021

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Chandan Asked Oct 3, 2021

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हाइड्रोकार्बन क्या है? Hydrocarbon Kya Hai?

Chandan Asked Oct 3, 2021

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ALOK_RAJ Asked Sep 23, 2021

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निम्न में से किस हाइड्रोकार्बन में तीन आबंध होते हैं? Nimn Mein Se Kis Hydrocarbon Mein Aabandh Hote Hain?

ALOK_RAJ Asked Sep 23, 2021

by ALOK_RAJ

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ALOK_RAJ Asked Sep 13, 2021

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CnH2n किस हाइड्रोकार्बन ग्रुप का संरचनात्मक सूत्र है? CnH2n Kis Hydrocarbon Group Ka Sanrachnatmak Sutra Hai?

ALOK_RAJ Asked Sep 13, 2021

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ALOK_RAJ Asked Aug 6, 2021

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CnH2n किस हाइड्रोकार्बन का सामान्य सूत्र है? CnH2n Kis Hydrocarbon Ka Samanya Sutra Hai?

ALOK_RAJ Asked Aug 6, 2021

by ALOK_RAJ

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ALOK_RAJ Asked Aug 5, 2021

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सरलतम हाइड्रोकार्बन है? Saraltam Hydrocarbon Hai?

ALOK_RAJ Asked Aug 5, 2021

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Chandan Asked Aug 8, 2023

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40 mL of a mixture of CO and H2 yielded 15 mL of CO2 after explosion with an excess of O2. The percentage of CO in the mixture would be:

Chandan Asked Aug 8, 2023

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John Michael Asked Aug 12, 2023

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If the median of x/5, x, x/4, x/2 and x/3, where x>0, is 8 then the value of x is equal to

John Michael Asked Aug 12, 2023

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Aayush Asked Jan 2

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The length of intercept made by the circle $x^{2}+y^{2}-3 x+4 y=0$ on $y$-axis is 4 .

Aayush Asked Jan 2

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Chandan Asked Oct 7, 2023

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Hydrogen peroxide and water contain 5.93% and 11.2% of hydrogen respectively. How this data illustrates the law of multiple proportions?

Chandan Asked Oct 7, 2023

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Aayush Asked Feb 2

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0.65 g of Zn was put in a solution of 1.5 g CuSO4 and the Cu. thus precipitated weighed 0.635 g. what weight of the zinc sulphate will be recovered on evaporation of the remaining solution?

Aayush Asked Feb 2

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Aayush Asked Feb 2

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If 6.3 g of NaHCO3 are added to 15.0 g of CH3COOH solution, the residue is found to weight 18.0 g. What is the mass of CO2 released in this reaction?

Aayush Asked Feb 2

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Chandan Asked Aug 8, 2023

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A gaseous saturated hydrocarbon (aliphatic) was mixed with excess of oxygen.

Chandan Asked Aug 8, 2023

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Chandan Asked Aug 13, 2023

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In ${PO}_4^{3-}$ ion, the formal charge on each oxygen atom and bond order of P-O bond are respectively

Chandan Asked Aug 13, 2023

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Chandan Asked Oct 7, 2023

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On analysis, it was found that the black oxide of copper, red oxide of copper, litharge, the red oxide of lead and the peroxide of lead contain 79.90%, 88.8%, 92.88%, 90.6% and 86.6% respectively of the metal. Establish the law of multiple proportions with the help of data.

Chandan Asked Oct 7, 2023

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ALOK_RAJ Asked Oct 5, 2023

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The vapour density of a mixture containing NO2 and N2O4 is 38.3 at $27^{\circ} C$. The moles of NO2 in 100 mole mixture is

ALOK_RAJ Asked Oct 5, 2023

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3 g of hydrocarbon on combustion in excess of oxygen produces 8.8 g of CO2 and 5.4 g of H₂O. The data illustrate the law of —

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