A Chemical equation is balanced according to the law of —

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What is a balanced chemical equation?

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ALOK_RAJ Asked Aug 18, 2023

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In the balanced chemical reaction —

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What is Chemical Equation?

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The addition of a catalyst during a chemical reaction alters which of the following quantities?

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Aayush Asked Feb 2

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Assuming 100% yield of the reaction, how many moles of NaHCO3 will produce 448 mL of CO2 gas at STP according to the reaction —

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Shiv roshan kushwaha Asked Apr 3, 2022

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Which of the following can show disproportionation reaction :

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ANAND_YADAV Asked Aug 8, 2023

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According to Graham's law at a given temperature, the ratio of the rates of diffusion of gases A and B is given by :

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Chandan Asked Sep 22, 2023

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A mixture of FeO and Fe3O4 heated in air to a constant weight gains 5% in its weight calculate composition of the mixture.

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

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ANAND_YADAV Asked Aug 8, 2023

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A sample of sodium nitrate weighing 8.53g is heated until a weight loss of 0.853g occurs.

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ALOK_RAJ Asked Oct 5, 2023

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What weight of carbon disulphide, CS2 can be completely oxidised to sulphur dioxide and carbon dioxide by the oxygen liberated when 325g of Na2O2 react with water?

ALOK_RAJ Asked Oct 5, 2023

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ALOK_RAJ Asked Oct 5, 2023

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When FeS2 is burnt in air, it converts to Fe2O3. What happens to the percentage by weight of iron in the process?

ALOK_RAJ Asked Oct 5, 2023

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Chandan Asked Oct 6, 2023

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The chloride of a metal M is to contain 20.2% metal. The specific heat of the metal is 0.224.

Chandan Asked Oct 6, 2023

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Chandan Asked Sep 29, 2023

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1.878g of a metal bromide when heated in a stream of hydrogen chloride gas is completely converted to the chloride weighing 1.00g.

Chandan Asked Sep 29, 2023

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Aayush Asked Feb 2

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Which of the following is not a redox reaction —

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Chandan Asked Aug 26, 2023

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Vander Waal's equation for 1 mole of a real gas under given conditions :

Chandan Asked Aug 26, 2023

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Aayush Asked Feb 2

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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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Chandan Asked Sep 22, 2023

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A mixture of 0.535g of ethanol and acetaldehyde when treated with a Fehling solution gave 1.2g of a red precipitate.

Chandan Asked Sep 22, 2023

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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 Aug 31, 2023

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The equation of circle which touches the line x + 3y - 2 = 0 and 3x + 9y - 2 = 0, also the point of contact on first line is (-1,1), is

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ALOK_RAJ Asked Nov 28, 2023

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The reaction given below, involving the gases is observed to be first order with rate constant $7.48 \times 10^{-3} {sec}^{-1}$.

ALOK_RAJ Asked Nov 28, 2023

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Aayush Asked Feb 2

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If 30 ml of H2 and 20 mL of O2 react to form water, what will be left at the end of the reaction?

Aayush Asked Feb 2

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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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Aayush Asked Feb 1

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A 10% w/w solution of cane sugar has undergone partial inversion according to the reaction : Sucrose + water →glucose + fructose . The boiling point of the solution is 100.7°C. What fraction of sugar has inverted?

Aayush Asked Feb 1

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Chandan Asked Aug 26, 2023

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The curve of pressure volume (PV) against pressure (P) of the gas at a particular temperature is as shown, according to the graph which of the following is incorrect (in the low pressure region):

Chandan Asked Aug 26, 2023

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ALOK_RAJ Asked Nov 19, 2023

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Law of multiple proportion was stated by _________.

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Aayush Asked Feb 20

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According to the third law of motion, action and reaction :

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ALOK_RAJ Asked Dec 1, 2023

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For which of the following reactions ΔH is less than ΔE?

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ANAND_YADAV Asked Aug 7, 2023

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The rate of first-order reaction is $0.04 {~mol} {~L}^{-1} {~s}^{-1}$ at $10 {s}$ and $0.03 {mol} {~L}^{-1} {~s}^{-1}$ at $20 {~s}$ after initiation of the reaction. The half-life period of the reaction is

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ANAND_YADAV Asked Jul 30, 2023

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When white phosphorus reacts with caustic soda, the products are PH3 and NaH2PO2. This reaction is an example of :

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Aayush Asked Apr 11

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The specific heat of a metal is 0.16. Its approximate atomic weight would be :

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Aayush Asked Jan 4

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For the cell prepared from electrode A and B, electrode $A : \frac{ Cr _{2} O _{7}^{2-}}{ Cr ^{3+}}, E _{\text {red. }}^{0}=+1.33 V$ and electrode $B$ : $\frac{F_{e^{3+}}^{F e^{2+}}, E_{\text {red. }}^{0}}{}=0.77 V$, which of the following statement is not correct?

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Aayush Asked Jan 3

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The specific conductivity of an aqueous solution of a weak monoprotic acid is $0.00033$ ohm $^{-1} cm ^{-1}$ at a concentration $0.02 M$.

Aayush Asked Jan 3

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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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