Quiz Medium 4 Categories Quizzes 0 Quiz Medium 4 1 / 25 Glass industry requires soda ash with Solids density 1.86 and bulk density 0.6 None of the above All of above Solid density 1.8 and bulk density 0.58 Solid density 1.91 and bulk density 1.0 2 / 25 In Pakistab the total production of glass is over 800 none of these 100000 8000 80000 3 / 25 pH of human blood is 7 7.35 6.78 7.85 4 / 25 Number of un paired electrons in Cu2+ 3 4 2 1 5 / 25 Red color of glass is due to the presence of Cu2O CoO MnO2 CdS 6 / 25 Type of hybride orbitals used by the chlorine atom in CIO2_ is sp3 sp sp2 none of these 7 / 25 [Ti( H2O)6]3+ absorb Red and white light Green and yellow light Yellow and red light Red and blue light 8 / 25 Covalent compounds are soluble in Polar solvents Nono-polar solvent Concentrated acids All solvents 9 / 25 In average composition of a good sample cement the percentage of silica is 0.225 0.205 0.245 0.185 10 / 25 Which of the following compounds combines with haemoglobin? CO NO N2 CO2 11 / 25 Which of the following statement about Kingdom Protista is incorrect? Their members have characteristics which separate them from other kingdoms. They don't develop fro Blastula or embryo. They only include unicellular aquatic eukaryotic organisms. They contain ancestors for fungi plants & animals 12 / 25 Sodium silicate is used As a preservation of eggs All above In fire proffing of wood and textiles As furniture polish 13 / 25 The melting of nearly all glass is done in a continuous tank furnace, which operates steadily over periods of up to a year a week none of these a day a month 14 / 25 The number of glass products now manufactured is 75000 none of these 50000 100BC 25000 15 / 25 By applying an external forces the ionic solid can be easily broken to powder from so the oinic solid are highly Tough Brittle Hard Soft 16 / 25 Which of the following is a false statement Halogens are strongest oxidizing agent Flourine is highly reactive Halogens show only (-1) oxidation state HF molecules form intermolecular H-Bonds 17 / 25 Which of following point is incorrect anout VSEPR theory? If the central atom is surrounded by lone pairs as well as bond pairs, the geometry is irregular The lone pairs as well as bond pairs repel each other and stay as far apart as possible so that the molecule or anion would have minimun energy The central atom is surrounded by bond pairs or bond pairs as well as lonw pairs of electrons The repulsive interactions between the bond pairs and lone pairs are in the order: lone pair-lone pair < lone pair bond pair >bond pair -bond pair 18 / 25 The bond along of SP2 hybridization 109.5o 120o 180o 160o 19 / 25 The order in O2+ 1.5 2 1 2.5 20 / 25 The composition of mixture of clay and limestone in the raw for cement materials is 15% limestone and 55% clay 25% limestone and 75% clay 75% limestone and 25% clay 55% limestone and 15% clay 30% limestone and 70% clay 21 / 25 A combination of atomic orbitals produces a large number of closely special energy states brown as Band of energy None of the above Packet of energy Both a and b 22 / 25 One of the followings are commonly called 'the giants' of the kingdom Protista Brown algae Euglenoids Red algae Apicomplexan 23 / 25 Keeping in the mind, the electrode potential which one of the following Cd +MgSO4 → CdSO4+Mg Zn +MnSO4→ZnSO4 + Mg Zn+2 + Cu →Cu+2 + Zn Fe+ CuSO4 → FeSO4 + FeSO4 + Cu 24 / 25 Yellow colour of the flame is observed with Calcium salt Sodium salt Potassium salt Strontium salt Barium salt 25 / 25 The polarity of bonds can lead to polaity of molecules and affect Solubility Boiling point All of above Melting point Your score is Share: Quiz Dad Previous post Quiz Medium 3 October 1, 2022 Next post Quiz Medium 5 October 1, 2022 You may also like Quiz Hard 5 1 October, 2022 Quiz Hard 4 1 October, 2022 Quiz Hard 3 1 October, 2022
