The density of methane at 2.0 atm pressure and 27 degrees centigrade is
A. 0.13gL-1 B. 0.26gL-1 C. 1.30gL-1 D. 26.0gL-1 Solution: (C) Given that Methane at 27°C and 2 atm Hence, T... View Article
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Which of the following is the major product when 1-butanol is heated with concentrated H2SO4?
A. 1-butene B. Cis-2-butene C. Trans-2-butene D. All of these Solution: (C) Trans-2-butene is the major product when 1-butanol is... View Article
Which of the following pair cannot be separated by NaHSO3?
Solution: (C) NaHSO3 can react mainly with aldehyde and methyl ketone. If... View Article
The density of a mixture of O2 and N2 is 1.33g/L
Solution: (0.28 atm) Let 1 mol of gas be present. So, 22.4 L will be the volume of the mixture... View Article
The volumes of 4 N HCl and 10 N HCl required to make 1 litre of 6 N HCI are
A. 0.75 litre of 10 N HCI and 0.25 litre of 4 NHCI B. 0.25 litre of 4 N HCI... View Article
How many benzene based isomers are possible by the compound C7H8O?
Solution: (5) For aromatic compound C7H8O, the total number of isomers possible is 5. They are as follows:
The activation energies of the two reactions are E1 and E2 with E1 > E2. If the temperature of the reacting system is increased from T1 (rate constants are K1 and K2) to T2(rate constants are K1’ and K2’ ) predict which of the following alternative is correct?
A. K1′ / K1 < K2′ / K2 B. K1′ / K1 > K2′ / K2 C. K1′ / K1 = K2′... View Article
Which of the following reactions will result in the formation of a chiral centre in the product?
A. CH3CH = CH2HBr → B. CH2 = CH2 + HOBr → C. CH3CH2CH = CH2 + HBr →H2O2 D.... View Article
What is formed when ammonium iodide is treated with conc. H2SO4?
On addition of conc. H2SO4 to an iodide salt, violet fumes are formed due to the formation of iodine (I2)... View Article
A compound which can be used in space vehicles both to absorb CO2 and liberate O2 is.
The compound that can be used in space vehicles both to absorb CO2 and liberate O2 is 2Na202. 2Na2O2 +... View Article
Passing H2S gas into a mixture of Mn2+, Ni2+, Cu2+ and Hg2+ ions in an acidified aqueous solution precipitates
H2S in an acidic medium or if it is added in an aqueous acidified solution tends to precipitate as sulphide... View Article
End product when phenyl magnesium bromide reacts with t-butanol
When Phenyl Magnesium Bromide reacts with t-butanol, benzene is obtained as the product. As for the reaction process, it forms... View Article
Which of the following reaction is not a redox reaction?(A) Combustion (B) Double displacement (C) Synthesis of two elements (D) Decomposition into elements
The Correct Answer is (B) Double displacement Solution: A double displacement reaction is not a redox reaction. This is because... View Article
Covalency of carbon in carbon dioxide is:
(A) 1 (B) 2 (C) 3 (D) 4 The Correct Answer is (D) 4. Solution: The covalency of carbon in... View Article
The total number of electrons in 4.2 g of N3−ion is:
(A) 3NA (B) 3.2NA (C) 2.1NA (D) 4.2NA The Correct Answer is (A) 3NA Solution: N3- = 4.2 g =... View Article
Arrange Ag, Cr and Hg metals in the increasing order of reducing power.
Given: \(\begin{array}{l} [E^{\circ}_{Ag^{+}/Ag} = +0.80 V\\E^{\circ}_{Cr^{+3}/Cr} = -0.74 V\\E^{\circ}_{Hg^{2}/Hg} = +0.79 V]\end{array} \) (A) Cr > Hg > Ag (B)... View Article
The arrangement of the first two layers, one above the other, in hcp and ccp arrangement is:
(A) Partly same (B) Nothing definite (C) Different from each other (D) Exactly the same in both cases. The Correct... View Article
In the following reaction, identify the substance that is oxidized and the substance that is reduced.
\(\begin{array}{l} CuO + H_{2} \rightarrow Cu + H_{2}O \end{array} \) Solution: In the above-given reaction : \(\begin{array}{l} CuO + H_{2}... View Article
Which of the following statement is true about the oxidation process?
(A) Loss of electron (B) Addition of oxygen (C) Addition of hydrogen (D) All of the above The Correct Answer... View Article
The correct order of basicity is:
(A) 1 > 2 > 3 > 4 (B) 4 > 3 > 2 > 1 (C) 1 > 3... View Article
