1. Dissolution of NH4C1 in excess of water is an endothermic process
2. Neutralization process is always exothermic
3. The absolute value of enthalpy (H) can be determined experimentally
4. The heat of reaction at constant volume is denoted by ∆E
The absolute value of enthalpy (H) can be determined experimentally
1. CH3COCH3, CH3CHO
2. C2H5CO2H, CH3CO2CH3
3. C2H5CO2H, CHCO2C2H5
4. CH3CO2H, CH3CHO
C<sub>2</sub>H<sub>5</sub>CO<sub>2</sub>H, CH<sub>3</sub>CO<sub>2</sub>CH<sub>3</sub>
1. The pH of resultant solution becomes 8.0
2. Hydrogen gas is liberated from resultant solution
3. The pH of resultant solution becomes less than 6.0 and oxygen gas is liberated
4. Cl2O is formed in the resultant solution
The pH of resultant solution becomes less than 6.0 and oxygen gas is liberated
1. Mg + B2O3→
2.
3. Mg + dil.HNO3→
4. Mg + CO2→
Mg + dil.HNO3→
1. acetophenone
2. glyoxal
3. cyclohexane
4. hexabromo cyclohexane
acetophenone
1. SiO2 is used as acid flux
2. The distance between the layers in graphite is 3.35 x 10-3 cm
3. SiO2 reacts with Na2CO3 and liberates CO.
4. The hybridization of C in graphite is sp2
SiO<sub>2</sub> reacts with Na<sub>2</sub>CO<sub>3</sub> and liberates CO.
1. Ammonia is used as refrigerant
2. A mixture of Ca(CN)2 and C is known as nitrolim
3. A mixture of Ca(H2PO4)2 and CaSO4.2H2O is known as superphosphate of lime
4. Hydrolysis of NCI3 gives NH3 and HOCl
A mixture of Ca(CN)<sub>2</sub> and C is known as nitrolim
1. Iodine oxidises sodium thiosulphate to sodium tetrathionate
2. Sodium thiousulphate is soluble in water
3. Ozone is used to identify the presence of unsaturation in alkenes
4. Sodium thiosulphate reacts with iodine to form sodium sulphate
Sodium thiosulphate reacts with iodine to form sodium sulphate
1. F2, NaOH solution (hot, conc.)
2. F2, H20
3. Cl2, NaOH solution (cold, dilute)
4. CaOCl2, H2S04 (dilute, small amount)
Cl<sub>2</sub>, NaOH solution (cold, dilute)
1. √3/5
2. √4/3
3. √2/3
4. 0.25
√2/3