Brass is a ____

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Brass is a ____

ALOK_RAJ Asked Nov 18, 2023

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Aayush Asked Feb 22

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Which of the following is not a redox reaction —

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A Chemical equation is balanced according to the law of —

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When a solution containing 50 gm ethylene glycol in 200 gm water is cooled to –9.3°C, the amount of ice separated out is —

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Aayush Asked Jan 4

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The energy required for the ionization of a certain atom is $3.44 \times 10^{-18}J$.

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The dissociation energy of H2 is $103 \cdot 2 kcal mol ^{-1}$. A hydrogen molecule is irradiated with a photon of wavelength 2537Å.

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For a saturated solution of AgCl at $25^{\circ} C, k =3.4 \times 10^{-6} ohm ^{-1} cm ^{-1}$ and that of $H _{2} O (\ell)$ used is $2.02 \times 10^{-6} ohm ^{-1} cm ^{-1}$.

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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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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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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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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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