Chemistry questions
29404 published questions with worked solutions.
- The heat of formation of water is 260 kJ. How much H_2O is decomposed by 130 kJ of heat? [MHTCET 2010]
- Heat of combustion of methane is -800 kJ. What is the heat of combustion for 4 10^ -4 kg of methane? [MHTCET 2009]
- If E is the heat of reaction for at constant volume, the H (heat of reaction at constant pressure), at constant temperature is...
- The bond energy is the energy required to [MHTCET 2007]
- For the reaction, The heat of decomposition of water per mole is [MHTCET 2007]
- For an ideal gas, the heat of reaction at constant pressure and constant volume are related as [MHTCET 2007]
- Hess's law is based on [MHTCET 2007]
- The standard molar heat of formation of ethane, CO_2 and water (l) are -21.1, -94.1 and -68.3 kcal, respectively. The standard...
- The CO_2 gas does not follow gaseous laws at all ranges of pressure and temperature because [MHTCET 2006]
- Heat of neutralisation will be minimum for which of the following combination? [MHTCET 2005]
- Heat of formation of SO_2 is -298 kJ. What is the heat of combustion of 4 g of S? [MHTCET 2004]
- Bond energy of hydrogen gas is -433 kJ. How much is the bond dissociation energy of 0.5 mole of hydrogen gas? [MHTCET 2005]
- Enthalpy (H) is equal to [MHTCET 2004]
- If the heat of formation of CO_2 is -393 kJ. The amount of heat evolved in the formation of 0.176 kg of CO_2 is [MHTCET 2004]
- Number of K^+ ions and mole of K^+ ions present in 1 litre of N 5 KMnO_4 acidified solution respectively are :
- The oxidation number of xenon in XeOF_2 is
- What volume of 2N K_2Cr_2O_7 solution is required to oxidise 0.81 g of H_2S in acidic medium?
- Which one of the following reaction is possible at anode?
- In the reaction, I_2 + 2S_2O_3^ 2- 2I^- + S_4O_6^ 2- , Equivalent weight of iodine will be equal to:
- In an oxidation process for a cell M_1 M_1^ n+ + ne, the other metal (M_2) being univalent showing reduction takes up the ........