SAT (Stage-1) Mock Test - 60

The National song's Hindi version 'Jana Gana Mana' was adopted by the Constituent Assembly of India as the National Anthem on 24^th January, 1950.

Arun Jaitley was named as the India's Governor on the Board of Governors of Asian Development Bank.

The Ellis Island Medal of Honor is an American award founded by the National Ethnic Coalition of Organisations (NECO) which is presented annually to American citizens who have distinguished themselves within their own ethnic groups while exemplifying the values of the American way of life.
Since its inception in 1986, the medal has been officially recognised by both Houses of Congress as one of the nation's most prestigious awards. It is the highest civilian award in the US for immigrants.

National Girl Child Day is celebrated every year on 24^th of January as a national observance day for the girl child. This celebration was started to offer more support and new opportunities to the girls in the country.

Rayon is a manufactured regenerated cellulose fibre. It is made from purified cellulose, primarily from wood pulp, which is chemically converted into a soluble compound.

Baking soda (NaHCO₃) and not washing soda (Na₂CO₃) is used in the bakery industry.
This is because baking soda decomposes on heating to produce CO₂ which makes the dough fluffy.

Na₂CO₃ does not undergo thermal decomposition to form CO₂, hence, it does not have a use in the bakery industry.

Basicity of an acid is shown by the number of moles of H⁺ ions that are produced when 1 mole of the acid is added to water.

ZnO + C → Zn + CO
Here, carbon is oxidised to CO.
This is an important reaction in metallurgy, wherein the metal oxide is reduced to metal and carbon is the reducing agent.
The process of reducing the oxides of metals using carbon is called smelting.

Alkenes on catalytic hydrogenation are reduced to corresponding alkanes.
Hydrogenation of propene will yield propane.

This is an example of an addition reaction as the hydrogens get added on to the double bonded carbons.

Galvanisation is the process of coating a metal such as iron with zinc. Zinc being more reactive than iron, forms a layer of ZnO on the suface, which is a very stable oxide and prevents the metal below from coming in contact with the atmospheric gases.

Statement II is correct as the gaseous mixture contains oxygen, which is a supporter of combustion and makes the candle burn more vigourously.
Statement III is correct as NO₂ is an acidic oxide and will dissolve to produce nitrous acid (unstable).
Statement I is incorrect as the colour of the gaseous mixture will be reddish brown due to the presence of NO₂ gas.

Onion is an olfactory indicator and looses its odour with bases but retains it with acids.

The first group of the periodic table is that of alkali metals.

They have 1 valence electron and valency 1.

They react violently with water to form hydrogen gas, which catches fire and causes an explosion.

The option (2) is incorrect as the alkali metals have one electron in excess of the noble gas configuration.

Homologous series is a group of organic chemical compounds that have the same general formula, a similar structure (and hence also similar properties) and successive members differ by the number of CH₂ units in the main carbon chain.

CH₄, C₂H₆, C₃H₈ and C₄H₁₀ is a homologous series of alkanes having the general formula C_nH_{2n + 2}.

C₄H₈, C₆H₁₂ and C₈H₁₆ are molecules of alkenes.

During the electrolytic refining of metals, anode uses a thick rod of impure metal, cathode uses a thin strip of pure metal and the electrolyte is solution of a salt of the metal.
The impurities of less reactive metals are insoluble and settle down as anode mud below the anode.
The impurities of more reactive metals displace the metal from the electrolyte and dissolve.