Which of the following property is correct about white phosphorous? 1] Thermodynamically more stable as compared to black phosphorous. 2] Tetrahedral cage structure 3] It has total twelve P-P bonds 4] It has total six bond angles of 60°

Which of the following is the correct order of bond angle in H_2S , NH_3 , BF_3 and SiH_4 ?

Which of the following is correct order of sigma - bond strength ? I. 2s-2s II. 2s-2p III. 2p-2p IV. 3s-3s

Which of the following is correct order of sigma - bond strength ? I. 2s-2s II. 2s-2p III. 2p-2p IV. 3s-3s

Which of the following statements are correct? 1. A sigma bond is stronger than a pi bond 2. A covalent bond is stronger than a hydrrogen bond 3. HF is more polar than HCl 4. There is one electrovalent bond and three covalent bonds in methylene chloride Select the correct answer using the codes given below

Phosphorus forms a number of oxoacids which differ in their structures and oxidation state of phosphorus. All the acids contain phosphorus atom//atoms linked tetrahedrally to four other atoms or groups. Each of them has at least one P=O or P rarr O unit and one P-OH unit. The OH group is ionisable but H atom linked directly to P is non-ionisabl. Structures of all the acids are considered to be derived either from phosphorus acid or phosphoric acid. Which one has + 3 oxidation state ?

Phosphorus forms a number of oxoacids which differ in their structures and oxidation state of phosphorus. All the acids contain phosphorus atom//atoms linked tetrahedrally to four other atoms or groups. Each of them has at least one P=O or P rarr O unit and one P-OH unit. The OH group is ionisable but H atom linked directly to P is non-ionisabl. Structures of all the acids are considered to be derived either from phosphorus acid or phosphoric acid. The number of or P = O and P - O- H bonds in H_3 PO_4 are.

Phosphorus forms a number of oxoacids which differ in their structures and oxidation state of phosphorus. All the acids contain phosphorus atom//atoms linked tetrahedrally to four other atoms or groups. Each of them has at least one P=O or P rarr O unit and one P-OH unit. The OH group is ionisable but H atom linked directly to P is non-ionisabl. Structures of all the acids are considered to be derived either from phosphorus acid or phosphoric acid. Which of the following is a cycle oxoacid ?

Phosphorus forms a number of oxoacids which differ in their structures and oxidation state of phosphorus. All the acids contain phosphorus atom//atoms linked tetrahedrally to four other atoms or groups. Each of them has at least one P=O or P rarr O unit and one P-OH unit. The OH group is ionisable but H atom linked directly to P is non-ionisabl. Structures of all the acids are considered to be derived either from phosphorus acid or phosphoric acid. Which one is monobasic acid ?

Phosphorus forms a number of oxoacids which differ in their structures and oxidation state of phosphorus. All the acids contain phosphorus atom//atoms linked tetrahedrally to four other atoms or groups. Each of them has at least one P=O or P rarr O unit and one P-OH unit. The OH group is ionisable but H atom linked directly to P is non-ionisabl. Structures of all the acids are considered to be derived either from phosphorus acid or phosphoric acid. The acid which forms two series of salts is.

Cyclotrimeta phosphoric acid has total number of P=O & P-O bonds respectively