Give one example of electron deficient Hydrides.

Give one example of electron deficient Hydrides.
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Ans.BH3
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What do you understand by (1) electron-deficient,(ii) electron-précise and (iii) electron precise hydrides. Provide justification with suitable examples

Description : What do you understand by (1) electron-deficient,(ii) electron-précise and (iii) electron precise hydrides. Provide justification with suitable examples

Last Answer : Ans: Electron-deficient: the hydrides which contain less than eight electron in their outmost shell are called electron- deficient for exam B2H6 Electron- precise: These hydrides contain exact number of ... nomal covalent bond and are called as electron rich hydrides. For example NH3,PH3,H2O,H2S.

What are electron deficient compounds? AreBCl3 and SiCl4 electron deficient species? Explain.

Description : What are electron deficient compounds? AreBCl3 and SiCl4 electron deficient species? Explain.

Last Answer : Ans. Electron deficient species are those in which the central atom in their molecules as the tendency to accept on or more electron pairs. They are also known as Lewis acids .BCl3 and SiCl4 ... due to the presence of d-orbital. Thus .SiCl4 should also be considered as electron deficient spaces.

why does boron form stable electron deficient compounds?

Description : why does boron form stable electron deficient compounds?

Last Answer : Ansboron has three electrons in its valance shell that boron show three electrons with other element and form an electron deficient compound

Give two examples of Interstitial Hydrides.

Description : Give two examples of Interstitial Hydrides.

Last Answer : Ans-Transition metal hydrides are called Interstitial Hydrides T1 H1.8& T1H2 (non –stoichiometric hydrides)

Give two examples of Interstitial Hydrides.

Description : Give two examples of Interstitial Hydrides.

Last Answer : Ans-Transition metal hydrides are called Interstitial Hydrides T1 H1.8& T1H2(non –stoichiometric hydrides)

Which of the following is electron deficient ?

Description : Which of the following is electron deficient ?

Last Answer : Which of the following is electron deficient ? A. `PH_(3)` B. `(BH_(3))_(2)` C. `(SiH_(3))_(2)` D. `(CH_(3))_(2)`

Find out number of reaction which involve electron deficient nitrogen during reaction mechanism.

Description : Find out number of reaction which involve electron deficient nitrogen during reaction mechanism.

Last Answer : Find out number of reaction which involve electron deficient nitrogen during reaction mechanism.

What accounts for the formation of Boron Hydrides?

Description : What accounts for the formation of Boron Hydrides?

Last Answer : Ans. Because of small size of both B & H forms stable compound called Boron Hydrides.

Assign the reason for the following: (a) Enthalpy of fusion of water is higher as compared to the hydrides of Sulphur & Selenium. (b) Water is quite stable and does not dissociate in to its elements even at high temperature.

Description : Assign the reason for the following: (a) Enthalpy of fusion of water is higher as compared to the hydrides of Sulphur & Selenium. (b) Water is quite stable and does not dissociate in to its elements even at high temperature.

Last Answer : Ans-a) Due hydrogen bond it has high latent heat of fusion b) Water is a stable compound and its decomposition is not thermodynamically feasible

what do you understand by “Non stoichiometric hydrides”? Do you think this type of hydrides to be formed by alkali metals? Justify your answer.

Description : what do you understand by “Non stoichiometric hydrides”? Do you think this type of hydrides to be formed by alkali metals? Justify your answer.

Last Answer : Ans: Hydrides which are deficient in hydrogen and in which the ratio of hydrogen to metal is fractional are called non-stoichiometric hydrides. This type of hydrides are formed by d-and ... they form only stoichiometric hydrides. In other words alkali metals do not form non-stoichiometric hydrides.

Name the classes of Hydrides to which H2O, B2H6 & NaH belong

Description : Name the classes of Hydrides to which H2O, B2H6 & NaH belong

Last Answer : Ans. H2O—Covalent B2H6- Covalent NaH- Ionic

Assertion :- Oxidation state of Hydrogen is `+1` in `H_(2)O` while `-1` in `CaH_(2)`. Reason :- `CaH_(2)` is a metal hydride and for metal hydrides, h

Description : Assertion :- Oxidation state of Hydrogen is `+1` in `H_(2)O` while `-1` in `CaH_(2)`. Reason :- `CaH_(2)` is a metal hydride and for metal hydrides, h

Last Answer : Assertion :- Oxidation state of Hydrogen is `+1` in `H_(2)O` while `-1` in `CaH_(2)`. ... Reason is False. D. If both Assertion & Reason are False.

The correct statements(s) regarding hydrides `(H_(2)E)` of group -16 is/are

Description : The correct statements(s) regarding hydrides `(H_(2)E)` of group -16 is/are

Last Answer : The correct statements(s) regarding hydrides `(H_(2)E)` of group -16 is/are A. The ... D. The reducing character of hydrides increases down the group

The basic strength of the hydrides of group 15 elements :

Description : The basic strength of the hydrides of group 15 elements :

Last Answer : The basic strength of the hydrides of group 15 elements : A. decreases on moving down the group ... first increases upto `AsH_(3)` and then decreases

The correct statements(s) regarding hydrides `(H_(2)E)` of group -16 is/are

Description : The correct statements(s) regarding hydrides `(H_(2)E)` of group -16 is/are

Last Answer : The correct statements(s) regarding hydrides `(H_(2)E)` of group -16 is/are A. The ... D. The reducing character of hydrides increases down the group

The basic strength of the hydrides of group 15 elements :

Description : The basic strength of the hydrides of group 15 elements :

Last Answer : The basic strength of the hydrides of group 15 elements : A. decreases on moving down the group ... first increases upto `AsH_(3)` and then decreases

`DeltaH_"vaporisation"` (KJ/mol) are given for the hydrides of halogens in the following graph. The hydride HF will correspond to

Description : `DeltaH_"vaporisation"` (KJ/mol) are given for the hydrides of halogens in the following graph. The hydride HF will correspond to

Last Answer : `DeltaH_"vaporisation"` (KJ/mol) are given for the hydrides of halogens in the following graph. The hydride HF will ... . (B)Q C. (C)R D. (D)S

Which of the following halogen hydrides will have the weakest conjugate base?

Description : Which of the following halogen hydrides will have the weakest conjugate base?

Last Answer : Which of the following halogen hydrides will have the weakest conjugate base? A. (A)HF B. (B)HCI C. (C)HBr D. (D)HI

Asseration: The thermal stability of hydrides of oxygen family decrease with molecular weight. Reason: The decomposition of `M-H` bond requires lesser

Description : Asseration: The thermal stability of hydrides of oxygen family decrease with molecular weight. Reason: The decomposition of `M-H` bond requires lesser

Last Answer : Asseration: The thermal stability of hydrides of oxygen family decrease with molecular weight. Reason: The decomposition ... in `O-H` than `S-H`.

The most acidic and most thermally stable set of chalcogen hydrides are respectively:

Description : The most acidic and most thermally stable set of chalcogen hydrides are respectively:

Last Answer : The most acidic and most thermally stable set of chalcogen hydrides are respectively: A. `H_(2)O,H_(2)s` B. `H_(2) ... )O,H_(2)Te` D. `H_(2)S,H_(2)Te`

(A) : Thermal stability of the hydrides of VIA group elements decreases from `H_(2)O` to `H_(2)Po` (R) : The heats of dissociation of M - H bond of hy

Description : (A) : Thermal stability of the hydrides of VIA group elements decreases from `H_(2)O` to `H_(2)Po` (R) : The heats of dissociation of M - H bond of hy

Last Answer : (A) : Thermal stability of the hydrides of VIA group elements decreases from `H_(2)O` to `H_(2)Po` (R) : ... is false D. (A) is false but (R) is true

The statements regarding hydrides of VIA group elements are i) The order of volatility `H_(2)OltH_(2)TeltH_(2)SeltH_(2)S` ii) The order of B.P `H_(2)O

Description : The statements regarding hydrides of VIA group elements are i) The order of volatility `H_(2)OltH_(2)TeltH_(2)SeltH_(2)S` ii) The order of B.P `H_(2)O

Last Answer : The statements regarding hydrides of VIA group elements are i) The order of volatility `H_(2)OltH_(2)TeltH_ ... are correct D. `i` & iii are correct

The maximum bond angle in hydrides of group 16 elements is in

Description : The maximum bond angle in hydrides of group 16 elements is in

Last Answer : The maximum bond angle in hydrides of group 16 elements is in A. `H_(2)O` B. `H_(2)Se` C. `H_(2)S` D. `H_(2)Te`

What is covalent hydrides?

Description : What is covalent hydrides?

Last Answer : Covalent hydrides are all the other compounds of hydrogen wher hydrogen is covalently bonded- typiccally sharing an electron pair as in CH4 (methane) which could be called carbon tetrahydride ... valence electronsand hydrogen forms negative ion gaining that electron in order to complete its shell.

What is covalent hydrides?

Description : What is covalent hydrides?

Last Answer : Covalent hydrides are all the other compounds of hydrogen wher hydrogen is covalently bonded- typiccally sharing an electron pair as in CH4 (methane) which could be called carbon tetrahydride ... valence electronsand hydrogen forms negative ion gaining that electron in order to complete its shell.

What are hydrides of boron called ?

Description : What are hydrides of boron called ?

Last Answer : Boranes

What is the nature of acid deficient alkali ?

Description : What is the nature of acid deficient alkali ?

Last Answer : The stronger the acid , the more proton it tends to drop. Then the tendency of the acid-binding base to bind to protons is very low. That is, it is mildly alkaline. Conversely, mild acids are ... it is highly alkaline. Thus the acid-binding base is mild and the mild acid-binding base is intense.

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