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This statement is False.

General reserve and accumulated profit are created out of past undistributed profit, such profits are the outcome of hard work of all the partners including retiring partner. Hence, retiring partner’s has right to share general reserve and accumulated profit. He is therefore, entitled to get share in general reserve and accumlated profit.

Correct option: (c) Interest

This statement is False.

On retirement of a partner, after giving retiring, partner’s share in goodwill and if goodwill is written off, then remaining partners will adjust the goodwill in their new profit sharing ratio. (If raised to full extent and written off)

Correct option: (b) Creditors

The retiring partner is paid his share of goodwill by debiting the Remaining Partners’ Capital Accounts in their gaining ratio and crediting the Retiring Partner’s Capital Account with the amount of premium.

Let height and slant height of the frustum be h and l. 

Radius, r’ = 100 m, r’’ = 50 m 

Volume of frustum = 44 × 10⁷ litres = 44 × 10⁴ m³ 

\(\frac{1}3\times\frac{22}7(100^2 + 50^2 + 100\times50)h\) = 44 x 10⁷

^{h = \(\frac{{44}\times{10}^4 \times{7}\times{3}}{{22} \times{17500}}\) = 24 m}

Slant height, l = \(\sqrt{(r' - r")^2 + h^2}\)

⇒ l = \(\sqrt{(100- 50)^2 + 24^2}\)

⇒ l = 55.46 m 

Lateral surface area of the frustum = π l (r’ + r’’) 

= \(\frac{22}7\times55.46 \times150\)

= 26145.4 m²

C. remain unaltered

When a solid is converted from one shape to another, the volume of new shape remains constant.

Correct option is (B) 7 cm

Let radius of the sphere is r cm.

\(\therefore\) \(4\pi r^2=616\)   \((\because\) Surface area of sphere \(=4\pi r^2)\)

\(\Rightarrow\) \(r^2=\frac{616}{4\pi}=\frac{616\times7}{4\times22}\)

\(=\frac{28\times7}4=7\times7=7^2\)

\(\Rightarrow\) r = 7

Hence, radius of sphere is 7 cm.

Correct option is   B) 7 cm

(B) frustum of a cone

As we know, The cross section when a plane is sliced through a cone is a circle.

Radius of sphere = r = radius of hemisphere

Volume of sphere = 4/3 πr³

Volume of hemisphere = 2/3 πr³

∴ Ratios of volumes = 4/3 πr^{3 : 2/3} πr³

= 4 : 2 = 2 : 1

Radius of the hemisphere = 10 cm

Total surface area of the hemisphere = 3πr² 

= 3 × 3.14 × 10 × 10 

= 9.42 × 100 

= 942 cm²

(1) When 9 cubes (3 x 3 x 1) are considered then it becomes a cuboid whose

length(l) = 3a = 3 x 2 cm = 6 cm

breadth (b)  = 3a = 3 x 2 cm = 6 cm

height(h) = a = 2 cm

\(\therefore\) Surface area = 2(lb + bh + hl)

 = 2(6 x 6 + 6 x 2 + 2 x 6) cm²

 = 2 (36 + 12 + 12) cm²

 = 2 x 60 cm²

 = 120 cm²

(2) When one cube of 2cm is removed at the corner then total surface area

 = Total surface area of bigger cube - surface area of three sides of small cube + surface area of three new formed sides of small cubes after removing a cube from

 = 6A² - 3a² + 3a²

 = 6A² = 6(3a)² = 6(3 x 2)²= 6³ = 216 cm

Correct option is  A) πr²

Correct option is (B) 2/3 πr³

Volume of hemisphere \(=\frac{2}{3}\pi r^3\)

Correct option is B) 2/3 πr³

(d) an anaesthetic

(b) Both A and R are wrong

(c) CCl₃ -CCl₂ - O - CCl₂ - CCl₃

Correct answer is

(a) Nylon

1. Diethyl ether is used as a surgical anesthetic agent in surgery.

2. It is a good solvent for organic reactions and extraction.

3. It is used as a volatile starting fluid for diesel and gasoline engine.

4. It is used as a refrigerant.

The condensation polymer is bakelite.

The increasing order of their intermolecular forces of attraction follows the order :

Buna-S, Polythene, Nylon-6,6.

Correct answer is

(a) Cellulose, dextron, PHBV

(c) propan – 1 – ol

LDP means low density polyethylene. LDP is obtained by polymerization of ethylene under high pressure (1000 – 2000 atm) and temperature (350 – 570 K) in presence of traces of O₂ or peroxide as initiator.

The mechanism of this reaction involves free radical addition and H-atom abstraction. The latter results in branching. As a result the chains are loosely held and the polymer has low density.

Properties of LDP :

• LDP films are extremely flexible, but tough chemically inert and moisture resistant. 
• It is poor conductor of electricity with melting point 110 °C.

Uses of LDP :

• LDP is mainly used in preparation of pipes for agriculture, irrigation, domestic water line connections as well as insulation to electric cables.
• It is also used in submarine cable insulation. 
• It is used in producing extruded films, sheets, mainly for packaging and household uses like in preparation of squeeze bottles, attractive containers, etc.

 HDP means high density polyethylene. It is a linear polymer with high density due to close packing.

HDP is obtained by polymerization of ethene in presence of Zieglar-Natta catalyst which is a combination of triethyl aluminium with titanium tetrachloride at a temperature of 333K to 343K and a pressure of 6-7 atm.

Properties of HDP :

• HDP is crystalline, melting point in the range of 144 – 150 °C. 
• It is much stiffer than LDP and has high tensile strength and hardness. 
• It is more resistant to chemicals than LDP.

 Uses of HDP :

• HDP is used in manufacture of toys and other household articles like buckets, dustbins, bottles, pipes, etc. 
• It is used to prepare laboratory wares and other objects where high tensile strength and stiffness is required.

Biodegradable polymers are used as orthopaedic devices, implants, sutures and drug release matrices.

Rust: The reddish-yellow coating formed on iron when exposed to moist air.

Physical change: A reversible change in a substance’s properties.

Vinegar: A sour liquid obtained by the fermentation of unique

Correct option is  B) Au

Baking soda: (Sodium bicarbonate) The addition of moisture or heating causes a reaction that produces bulbs of CO₂ gas, which make dough or cake mixture rise.

Lime water: A solution of calcium hydroxide in water.

Corrosion: Reaction of metal with acid, oxygen, or other compounds with the destruction of the surface of the metal.

Corrosion is the deterioration of a material as a result of its interaction with its surroundings and can occur at any point or at any time during petroleum and natural gas processing. Although this definition is applicable to any type of material, it is typically reserved for metallic alloys.

D) Reduction

Correct option is C) Hg

Corrosion: Metallic objects are slowly coated with oxides or other salts of the metal and form a thin layer which is called corrosion.

Correct option is  A) HgO, Hg

The process of obtaining the pure metal from the impure metal is called refining of the metal.

Correct option is  D) Refining

A) Magnesite

The impurities are removed either as gases or get oxidized and form scum (slag) over the surface of the molten metal. This is called poling.

A) Reverberatory

Rusting: Corrosion of iron is called rusting.

D) All of these

Correct option is: A) Gangue

Correct option is  C) Restart

Correct option is  A) Gangue

A) Distillation

Blister copper is purified by poling.

Roasting is a pyrochemical process in which ore is heated in the presence of oxygen or air below its melting point.

Hearth: The hearth is the place inside the furnace where the ore is kept for heating.