The law of multiple proportions is illustrated by the pair of compounds —

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Chandan Asked Oct 6, 2023

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Phosphorus and chlorine form two compounds. The first compound contains 22.54% by mass of phosphorus while the second compound contains 14.88% phosphorus. Show that the data supports the law of multiple proportions.

Chandan Asked Oct 6, 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

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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 1

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

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Aayush Asked Feb 1

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Which one is the best example of law of conservation of mass?

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ALOK_RAJ Asked Nov 19, 2023

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Law of multiple proportion was stated by _________.

ALOK_RAJ Asked Nov 19, 2023

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Which of the following is not the characteristic of interhalogen compounds?

John Michael Asked Aug 10, 2023

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ANAND_YADAV Asked Aug 7, 2023

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Which of the following compounds doesn't have linear structure?

ANAND_YADAV Asked Aug 7, 2023

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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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Chandan Asked Oct 6, 2023

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Copper sulphide contains 66.5% Cu, copper oxide contains 79.9% Cu and sulphur trioxide contains 40% S. Show that the data illustrates the law of reciprocal proportions.

Chandan Asked Oct 6, 2023

by Chandan

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ANAND_YADAV Asked Jul 29, 2023

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Which pair of following quantities has dimensions different from each other.

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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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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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ANAND_YADAV Asked Jul 25, 2023

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Calcium is obtained by :

ANAND_YADAV Asked Jul 25, 2023

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Chandan Asked Aug 26, 2023

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In the term $\left(P+a n^{2} N^{2}\right)$ proposed by Vander Waal

Chandan Asked Aug 26, 2023

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Chandan Asked Sep 11, 2023

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A long spring is stretched by 2 cm, it potential energy is U. If the spring is stretched by 10 cm, the potential energy stored in it will be —

Chandan Asked Sep 11, 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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ALOK_RAJ Asked Nov 28, 2023

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Of the following statements about enzymes which is/are true?

ALOK_RAJ Asked Nov 28, 2023

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ALOK_RAJ Asked Oct 18, 2023

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A resistance of $50 \Omega$ is registered when two electrodes are suspended into a beaker containing a dilute solution of a strong electrolyte such that exactly half of the them are submerged into solution.

ALOK_RAJ Asked Oct 18, 2023

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ANAND_YADAV Asked Jul 25, 2023

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Which of the following statements about the highly pure dilute solution of sodium in liquid ammonia at -33ºC is incorrect?

ANAND_YADAV Asked Jul 25, 2023

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ALOK_RAJ Asked May 7, 2022

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In which one of the following pairs the radius of the second species is greater than that of the first?

ALOK_RAJ Asked May 7, 2022

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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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Chandan Asked Oct 6, 2023

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Cu2S and Ag2S are isomorphous compounds. The percentage of sulphur in Cu2S is 20.14 and that in Ag2S is 12.94. The atomic weight of copper is 63.57. Calculate the atomic weight of silver.

Chandan Asked Oct 6, 2023

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Aayush Asked Jan 3

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We have taken a saturated solution of $AgBr$. $K _{ sp }$ of $AgBr$ is $12 \times 10^{-14}$.

Aayush Asked Jan 3

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ALOK_RAJ Asked Nov 28, 2023

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When chlorine water is added to an aqueous solution of potassium halide in presence of chloroform, a violet colour is obtained.

ALOK_RAJ Asked Nov 28, 2023

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ALOK_RAJ Asked Dec 1, 2023

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Two students performed the same experiment separately and each one of them recorded two readings of mass which are given below.

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ALOK_RAJ Asked Jul 25, 2023

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39.4 kg of gold was recovered from a Smuggler. The number of atoms of gold recovered are —

ALOK_RAJ Asked Jul 25, 2023

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Shiv roshan kushwaha Asked Apr 3, 2022

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Which of the following can show disproportionation reaction :

Shiv roshan kushwaha Asked Apr 3, 2022

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A body of mass m kg is rotating in a vertical circle at the end of a string of length r metre.

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ALOK_RAJ Asked Aug 3, 2023

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Thomas throws a silver coin in the sea. The density of the coin is 0.985 gm/m3. Will the coin float on the surface of water or it will sink?

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ANAND_YADAV Asked Jul 29, 2023

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The Young's modulus of a material of wire is 12.6 × 1011 dyne /cm2. Its value in MKS system is :

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ANAND_YADAV Asked Jul 29, 2023

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$\int \frac{x d x}{\sqrt{2 a x-x^{2}}}=a^{n} \sin ^{-1}\left[\frac{x}{a}-1\right]$. The value of $n$ is —

ANAND_YADAV Asked Jul 29, 2023

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Aayush Asked Feb 2

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A Chemical equation is balanced according to the law of —

Aayush Asked Feb 2

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ALOK_RAJ Asked Nov 18, 2023

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Which one of the following is not a compound?

ALOK_RAJ Asked Nov 18, 2023

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ALOK_RAJ Asked Aug 3, 2023

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A compound contains carbon and chlorine. The percentage of chlorine in the compound is 92.21. In another compound which contains carbon and sulphur, the percentage of sulphur is 84.21. In a third compound which contains Sulphur and chlorine, the percentage of chlorine is 52.59.

ALOK_RAJ Asked Aug 3, 2023

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The law of multiple proportions is illustrated by the pair of compounds —

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