I. Tensile strength of vulcanised rubber is almost ten times more than raw rubber . II. Elasticity of raw rubber is very high. Chose the correct optio

Question

I. Tensile strength of vulcanised rubber is almost ten times more than raw rubber . II. Elasticity of raw rubber is very high. Chose the correct optio

I. Tensile strength of vulcanised rubber is almost ten times more than raw rubber .
II. Elasticity of raw rubber is very high.
Chose the correct options.
A. I is true II is false
B. I is false II is true
C. Both I and II
D. Neither I nor II

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

Related Questions

To what depth must a rubber ball be taken in deep sea so that its volume is decreases by `0.1%` (The bulk modulus of rubber is `9.8xx10^(8) N//m` , an

2 Answers 4 Views

Choose total number of correct statements about `H_(2)O_(2)` : (a) in the pure state, `H_(2)O_(2)` is almost colourless (very pale blue) (b) hydrogen

2 Answers 4 Views

Gelatin, a very important raw material for preparation of photographic emulsion, in a bi-product of

2 Answers 8 Views

Mendel chose pea plants because they:

2 Answers 4 Views

5. While performing an experiment to determine the percentage of water absorbed by raisins, [0. the following data was obtained: Mass of water taken in the beaker \( =50 g \) Mass of raisins before soaking them in water \( =5 g \) Mass of raisins after soaking in water for 2 hours \( =8 g \). The percentage of water absorbed by raisins would be : a) \( \frac{(8-5) g}{8 g} \times 100 \) b) \( \frac{(8-5) g}{5 g} \times 100 \) c) \( \frac{(8-3) g}{8 g} \times 100 \

2 Answers 4 Views

Assertion : Alcohols are more boinling than aldehyes of comparable molecular masses. Reason : Stric hindrance is more than in acetaldehyde.

2 Answers 4 Views

Assertion : 1, 3-Butadiene is the monomer of natural rubber Reason : In natural rubber, the monomers are linked by cationic polymerisation

2 Answers 4 Views

Assertion : Natural rubber is vulcansied through cross-linking Reason : Vulcanisation of natural rubber is done with the help of molten sulphur

2 Answers 4 Views

Assertion (A) Polyamides are best used fas fibres because of high tensile strength. Reason (R ) Strong intermolecular foces (like hydrogen bonding wit

2 Answers 5 Views

A is a set containing n elements. A subset P of A is chosen. The set A is reconstructed by replacing the elements of P. A subset Q of A is again chose

2 Answers 4 Views

Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - A
Natural rubber is soft and sticky and after vulcanisation , its strength and elasticity increase due to cross links occur between different monomer units.

4 views Answered 2023-02-05 15:29