Home
Class 12
CHEMISTRY
Silicones are water repelling in nature ...

Silicones are water repelling in nature due to.

A

they have highly covalent `Si-O-Si` linkages.

B

they have organic groups forming hydrophobic exterior.

C

they are polymoric in nature.

D

they have `Si-H` bonds as in hydrocarbons.

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • P-BLOCK ELEMENT (BORON AND CARBON FAMILY)

    RESONANCE ENGLISH|Exercise PART - III : OLYMPIAD PROBLEMS (PREVIOUS YEARS) STAGE - II (INDIAN NATIONAL CHEMISTRY OLYMPIAD (INCHO)) Problem 1|11 Videos

  • P-BLOCK ELEMENT (BORON AND CARBON FAMILY)

    RESONANCE ENGLISH|Exercise PART - III : OLYMPIAD PROBLEMS (PREVIOUS YEARS) STAGE - II (INDIAN NATIONAL CHEMISTRY OLYMPIAD (INCHO)) Problem 2|8 Videos

  • P-BLOCK ELEMENT (BORON AND CARBON FAMILY)

    RESONANCE ENGLISH|Exercise SECTION-4|3 Videos

  • P BLOCK ELEMENTS

    RESONANCE ENGLISH|Exercise PART -II|23 Videos

  • P-BLOCK ELEMENTS (HALOGEN & NOBLE GASES)

    RESONANCE ENGLISH|Exercise APSP PART-3|22 Videos

Similar Questions

Explore conceptually related problems

Assertion (A) : Silicones are water repelling in nature Reason (R) : Silicones are organosilicon polymers, which have (-R_(2)SiO-) as repeating unit.

Silicones are used as.

Silicones are sunthetic polyners conitainging repeated R_2 SiO units . Since the empirical formula is that of a ketone (R_2 CO) , the name Silicone has eeen given to these materils . Siliconse can be makde intio oils , rubbery eleastomers and resins . They find a varely of appoications because of their chemical inctness , water repelling nature m heat resistance and good electical insulationg property . Commerical silicon polumers are usuallly metghly synthesised by the hudroluysis of R_2 SiCl_2 [R = Methyl (Me ) or phenyl ( phi)] . If we mix SiMe_3Cl with SiMe_2Cl_2 , we get silicones of the type .

Silicon is the second most abundant element (~27.2%) in the earth's after oxygen (45.5 %) Carbon. Silicon, germanium, tin and lead constitute the group 14 of the periodic table. Chemistry of silicon is distinctly different from that of carbon. For example, under standard conditions CO_(2) is a gas whereas SiO_(2) is a covalent solid. Draw the structure of the anion present in pyroxene (MgCaSi_(2)O_(6)) . Silicones are important synthetic polymers which find extensive applications due to their chemical inertness and water repelling nature. Thet are produced via the following reactions. 2 C_(6)H_(5)Cl +Si underset("370 K")overset("Cu")to A A underset(-HCl)overset(H_(2)O)to B

Silicones repel water due to:

Silicones are synthetic polymers containing repeated R_2 SiO units . Since the empirical formula is that of a ketone (R_2 CO) , the name Silicone has been given to these materials . Silicone can be made into oils , rubbery elastomers and resins . They find a variety of applications because of their chemical inertness , water repelling nature, heat resistance and good electrical insulating property . Commerically silicon polymers are usually synthesised by the hudrolysis of R_2 SiCl_2 [R = Methyl (Me ) or phenyl ( phi)] . If we start with SiMeCl_3 as the starting material silicones formed is :

Assertion (A) : Silicones are hdyreopbhobic in nature . Reason (R) : Si -O - Si likages are moisture sensitive .

Water passes into a cell due to

The water potential increases due to

Water rises in the stem due to