Classify the following solids as ionic, metallic, molecular, network (covalent) or amorphous.
i) Tetraphosphorus decoxide `(P_4O_10)`
ii) Ammonium phosphate `(NH_4PO_4)`
iii) SiC
iV) `I_2`
vi) Plastic
vi) Graphite
vii) Brass
ix) Rb
x)LiBr
xi) Si

Classify the following solids as ionic, metallic, molecular, network (covalent) or amorphous. i) Tetraphosphorus decoxide (P_4O_10) ii) Ammonium phosphate ((NH_4)_3PO_4) iii) SiC iv) I_2 V) P_4 vi) Plastic vii) Graphite viii) Brass ix) Rb x) LiBr xi) Si

Classify each of the following solids as ionic, metallic, molecular, network or amorphous. a) I_2 b) Plastic c) LiBr d) SiC

Classify the following measures as scalars and vectors. i) 10 kg ii) 2 meters north-west iii) 40^circ iv) 40 watt v) 10^(-10) coloumb vi) -20 m / s^2

Which of the following statements are true? i) Starch, cellulose, resins etc are natural polymers ii) Vulcanised rubber is a semi-synthetic polymer iii) HDPE, PVC, Nylons, Polyesters etc are linear polymers iv) Linear polymérs possess relatively low density, low melting point and low tensile strength v) Amyłopectin and glycogen are naturally occuring and branched chain polymers vi) In cross linked polymers, strong covalent bonds exist between linear polymer chains . (1) Only i, ii and iii are true (2) All except iv are true (3) Only vand vi are true (4) Only i, ii, v and vi are true

Write down the IUPAC name for each of the following complexes and indicate the oxidation state, electronic configuration and coordination number. Also give stereochemistry and magnetic moment of the complex.. i) K[Cr(H_2 O)_2(C_2 O_4)_2] 3H_2 O ii) [CrCl_3(Py)]_3 iii) K_4[Mn(CN)_6] iv) [Co(NH_3)_5 Cl] Cl_2 . v) Cs[FeCl_4]

Discuss the nature of bonding in the following coordination entities on the basis of Valence bond theory: i) [Fe(CN)_6]^+ ii) [FeF_6]^(3-) iii) [Co(C_2 O_4)_3]^(3-) iv) [CoF_6]^(3-)

Arrange the following sets of molecules in the decreasing order of bond angle : i) 'SF_6, CCl_4, H_2 O, NH_3' ii) 'C H_4, N H_3, H_2 O, B F_3' iii) 'A l C l_3, H_2 S, B e H_2, H_2 O'

Calculate the equivalent weight of the following: (i) KMnO_4 in acidic medium (ii) KMnO_4 in alkaline medium (iii) FeSO_4 (NH_4)_2 SO_4. 6H_(2) O (converting to Fe^(3+) ) (iv) K_2 Cr_2 O_7 in acidic medium (v) H_2 C_2 O_4 (converting to CO_2 ) (vi) Na_(2) S_(2) O_(3). 5H_(2) O ( reacting with I_2 )

What is meant by the following terms ?.Give an example of the reaction in each case. i. Cyanohydrin ii. Acetal iii. Semicarbazone- iv. Aldol v.Heniacetal vi. Oxime vii. Ketal viii. Imine ix. 2,4-DNP-derivative x. Schiffs base

Justify the following statements. i. Water mixed with formic acid cannot be separated by fractional distillation. ii. o -nitrophenol is steam volatile while p-nitrophenol is not. iii. Freshly prepared FeSO_4 solution is insisted during the test for nitrogen in Lassaignes test. iv. Copper spiral is used in the apparatus for Dumas method.