228893 Experimentally, it was found that a metal oxide has formula $M_{0.98} \mathrm{O}$. Metal $M$, present as $M^{2+}$ and $M^{3+}$ in its oxide. Fraction of the metal which exists as $M^{3+}$ would be

228895 $100 \mathrm{~mL}$ of $\mathrm{N} / 5 \mathrm{HCI}$ was added to $1 \mathrm{~g}$ of pure $\mathrm{CaCO}_3$. What would remain after the reaction?

228897 The reaction of calcium with water is represented by the equation:
$\mathrm{Ca}+2 \mathrm{H}_2 \mathrm{O} \rightarrow \mathrm{Ca}(\mathrm{OH})_2+\mathrm{H}_2$
What volume of $\mathrm{H}_2$ at STP would be liberated when 8 g of calcium completely reacts with water?

228898 The vapour of a substance effuses through a small hole at the rate of 1.3 times faster than $\mathrm{SO}_2$ gas at 1 atm pressure and $500 \mathrm{~K}$. The molecular weight of the gas is

228899 The ratio of moles of hydrogen produced when two moles of aluminium react with excess $\mathrm{HCl}$ and $\mathrm{NaOH}$ separately is

228893 Experimentally, it was found that a metal oxide has formula $M_{0.98} \mathrm{O}$. Metal $M$, present as $M^{2+}$ and $M^{3+}$ in its oxide. Fraction of the metal which exists as $M^{3+}$ would be

228895 $100 \mathrm{~mL}$ of $\mathrm{N} / 5 \mathrm{HCI}$ was added to $1 \mathrm{~g}$ of pure $\mathrm{CaCO}_3$. What would remain after the reaction?

228897 The reaction of calcium with water is represented by the equation:
$\mathrm{Ca}+2 \mathrm{H}_2 \mathrm{O} \rightarrow \mathrm{Ca}(\mathrm{OH})_2+\mathrm{H}_2$
What volume of $\mathrm{H}_2$ at STP would be liberated when 8 g of calcium completely reacts with water?

228898 The vapour of a substance effuses through a small hole at the rate of 1.3 times faster than $\mathrm{SO}_2$ gas at 1 atm pressure and $500 \mathrm{~K}$. The molecular weight of the gas is

228899 The ratio of moles of hydrogen produced when two moles of aluminium react with excess $\mathrm{HCl}$ and $\mathrm{NaOH}$ separately is

228893 Experimentally, it was found that a metal oxide has formula $M_{0.98} \mathrm{O}$. Metal $M$, present as $M^{2+}$ and $M^{3+}$ in its oxide. Fraction of the metal which exists as $M^{3+}$ would be

228895 $100 \mathrm{~mL}$ of $\mathrm{N} / 5 \mathrm{HCI}$ was added to $1 \mathrm{~g}$ of pure $\mathrm{CaCO}_3$. What would remain after the reaction?

228897 The reaction of calcium with water is represented by the equation:
$\mathrm{Ca}+2 \mathrm{H}_2 \mathrm{O} \rightarrow \mathrm{Ca}(\mathrm{OH})_2+\mathrm{H}_2$
What volume of $\mathrm{H}_2$ at STP would be liberated when 8 g of calcium completely reacts with water?

228898 The vapour of a substance effuses through a small hole at the rate of 1.3 times faster than $\mathrm{SO}_2$ gas at 1 atm pressure and $500 \mathrm{~K}$. The molecular weight of the gas is

228899 The ratio of moles of hydrogen produced when two moles of aluminium react with excess $\mathrm{HCl}$ and $\mathrm{NaOH}$ separately is

228893 Experimentally, it was found that a metal oxide has formula $M_{0.98} \mathrm{O}$. Metal $M$, present as $M^{2+}$ and $M^{3+}$ in its oxide. Fraction of the metal which exists as $M^{3+}$ would be

228895 $100 \mathrm{~mL}$ of $\mathrm{N} / 5 \mathrm{HCI}$ was added to $1 \mathrm{~g}$ of pure $\mathrm{CaCO}_3$. What would remain after the reaction?

228897 The reaction of calcium with water is represented by the equation:
$\mathrm{Ca}+2 \mathrm{H}_2 \mathrm{O} \rightarrow \mathrm{Ca}(\mathrm{OH})_2+\mathrm{H}_2$
What volume of $\mathrm{H}_2$ at STP would be liberated when 8 g of calcium completely reacts with water?

228898 The vapour of a substance effuses through a small hole at the rate of 1.3 times faster than $\mathrm{SO}_2$ gas at 1 atm pressure and $500 \mathrm{~K}$. The molecular weight of the gas is

228899 The ratio of moles of hydrogen produced when two moles of aluminium react with excess $\mathrm{HCl}$ and $\mathrm{NaOH}$ separately is

228893 Experimentally, it was found that a metal oxide has formula $M_{0.98} \mathrm{O}$. Metal $M$, present as $M^{2+}$ and $M^{3+}$ in its oxide. Fraction of the metal which exists as $M^{3+}$ would be

228895 $100 \mathrm{~mL}$ of $\mathrm{N} / 5 \mathrm{HCI}$ was added to $1 \mathrm{~g}$ of pure $\mathrm{CaCO}_3$. What would remain after the reaction?

228897 The reaction of calcium with water is represented by the equation:
$\mathrm{Ca}+2 \mathrm{H}_2 \mathrm{O} \rightarrow \mathrm{Ca}(\mathrm{OH})_2+\mathrm{H}_2$
What volume of $\mathrm{H}_2$ at STP would be liberated when 8 g of calcium completely reacts with water?

228898 The vapour of a substance effuses through a small hole at the rate of 1.3 times faster than $\mathrm{SO}_2$ gas at 1 atm pressure and $500 \mathrm{~K}$. The molecular weight of the gas is

228899 The ratio of moles of hydrogen produced when two moles of aluminium react with excess $\mathrm{HCl}$ and $\mathrm{NaOH}$ separately is