A. -1
B. -3
C. +3
D. +5
An organic compound containing C and H has 92.3% of carbon, Its empirical formula is:
x grams of calcium carbonate was completely burnt in air. The weight of the solid residue formed is 28g. What is the value of x (in grams)
0.84 g of metal carbonate reacts exactly with 40 mL of N/2 H2S04. The equivalent weight of the metal carbonate is :<br>
Assertion (A) : Equal moles of different substances contain same number of constituent particles.<br>Reason (R) : Equal weights of different substances contain the same number of constituent particles.<br>The correct answer is<br>
138 g of ethyl alcohol is mixed with 72 g of water. The ratio of mole fraction of alcohol to water is<br>
1.5 g of CdCl2 was found to contain 0.9 g of Cd. Calculate the Atomic weight of Cd
One mole of fluorine is reacted with two moles of hot concentrated KOH. The products formed are KF, H<sub>2</sub>O and O<sub>2</sub>. The molar ratio of KF, H<sub>2</sub>O and O<sub>2</sub> respectively is
X liter of carbon monoxide is present at STP. It is completely oxidized to CO2. The volume of CO2 formed is 11.207 litres. What is the value of X in litres
What is the volume (in litres) of oxygen required at STP to completely convert 1.5 mol of sulpher into sulpher dioxide
A metal nitride contains 28% nitrogen by weight. The molecular formula of metal nitride is M<sub>3</sub>N<sub>2</sub> What is the atomic weight of metal