Consider the following reactions:
Y can be conserted to X on heating with ....... at ...... temperature :
Al2O3, 350°C
Cu, 300°C
Ca(OH)2+ CaOCl2, 60°C
NaOH/I2, 60°C
When acetylene is passed through red hot iron tube, compound X is formed. Which one of the following reactions will yield X as the major product?
2, 3-dimethyl hexane contains...... tertiary ....... secondary and ...... primary carbon atoms, respectively:
2,2,4
2,4,3
4,3,2
3,2,4
Water is considered to be polluted if the dissolved oxygen D.O. content is less than .... ppm
5
10
15
100
A mixture of sodium oxide and calcium oxide are dissolved in water, and saturated with excess carbon dioxide gas. The resulting solution...... is It contains ....... :
basic; NaOH and Ca(OH)2
neutral; Na2CO3 and CaCO3
Basic; Na2CO3 and CaCO3
Acidic; NaOH and Ca(OH)2
Which one of the following is correct about stability of the given ions?
Pb2+ > Pb4+
Pb4+ > Pb2+
Si2+ > Si4+
Sn4+ > Sn2+
Sulphur trioxide is dissolved in heavy water to form a compound X. The hybridisation state of sulphur in X is :
sp2
sp3
sp
dsp2
What are the products formed when an aqueous solution of magnesium bicarbonate is boiled?
MgO, H2O, CO2
Mg(HCO3)2, H2O
Mg(OH)2, H2O
Mg, CO2, H2O
A.
MgO, H2O, CO2
Consider the following reaction equilibrium:
Initially, 1 mole of N2 and 3 moles of H2 are taken in a 2 L flask. At equilibrium state if, the number of moles of N2 is 0.6, what is the total number of moles of all gases present in the flask?
0.8
1.6
3.2
6.4