SAT (Stage-1) Mock Test - 80

Qutubuddin Aibak started the construction of the Qutub Minar in honour of famous saint Khwaja Qutubuddin Bakhtiar Kaki.
Qutubuddin Aibak, founder of the Delhi Sultanate, started the construction of Qutub Minar's first storey around 1192. In 1220, Aibak's successor and son-in-law, Shamsuddin Iltutmish completed a further three storeys. In 1369, a lightning strike destroyed the top storey. Firoz Shah Tughlaq replaced the damaged storey, and added one more. Sher Shah Suri also added an entrance to this tower while he was ruling and Humayun was in exile.

Allan Octavian Hume was the founder of the Indian National Congress. The INC conducted its first session in Bombay from 28–31 December 1885 at the initiative of retired Civil service officer, Allan Octavian Hume.

Gandhiji convinced other leaders in the Calcutta Congress Session of September 1920 for the need to start a non-cooperation movement in support of Khilafat as well as for swaraj. A programme of surrender of titles; the boycott of schools, courts and councils; the boycott of foreign goods; the promotion maintenance of a Hindu-Muslim unity; and strict non-violence was adopted.

Terms of Jawahar Lal Nehru are 1947-52, 1952-57, 1957-62 and 1962-64. He died in 1964 during his 4^th Prime-Ministerial term. He represented Phulpur constituency in UP. The first non-Congress PM of India was Morarji Desai (Janta Party) from 1977-1979.

The members of the Constituent Assembly were elected indirectly by the members of the individual Provincial Legislative Assemblies.
The arrangement was: (i) 292 members were elected through the Provincial Legislative Assemblies; (ii) 93 members represented the Indian Princely States; and (iii) 4 members represented the Chief Commissioners' Provinces. The total membership of the Assembly thus was to be 389.

Ferric sulphate is an acidic salt formed by the neutralisation reaction between a strong acid (H₂SO₄) and a weak base {Fe(OH)₃}.



The aqueous solution of this salt will have pH less than 7, will turn blue litmus red and remain colourless with phenolphthalein.
With methyl orange indicator, the solution will turn pink.

All reactions of metals with oxygen or metal with water will produce a base as both oxides as well as hydroxides of metals are basic.

The sting of an ant contains formic acid which causes a rash on the skin. The effect can be neutralised by applying a base on the affected area.

This reaction is not possible as Zn, being less reactive than Al, cannot displace it from its salt solution.

All displacement reactions are also redox reactions.

Here, zinc is getting oxidised and iron is getting reduced.

Aqua regia is a freshly prepared mixture of concentrated hydrochloric acid and concentrated nitric acid in the ratio of 3 : 1. It is a highly corrosive, fuming liquid and one of the few reagents that can dissolve gold and platinum.

During the electrolytic refining of copper, the lump of impure copper metal is attached to the positive terminal of the battery and made the anode and a thin strip of pure copper is connected to the negative terminal of the battery and made the cathode, and both the electrodes are dipped in an aqueous solution of copper sulphate. During the process, copper metal gets oxidised at the anode and goes into the solution, whereas the copper ions get reduced at the cathode and deposit as pure copper metal.

The reaction of a carboxylic acid with an alcohol in the presence of an acid catalyst to form an ester, is known as esterification.
Esters are sweet-smelling substances which are used for making perfumes and as flavouring agents.

CH₃COOH + CH₃OH  CH₃COOCH₃ + H₂O

The melting and boiling points of a substance are a measure of the intermolecular forces of attraction. Stronger the forces of attraction between the molecules, higher will be the melting and boiling points. Organic compounds are formed by covalent bonding, and the intermolecular forces are weak Vander Waal's forces of attraction. Hence, they possess low melting points and boiling points.