Category: CHM205 0 CHM205 1 / 50 The halogen which has only two complete electron shells below the valence shell is _______ Check 2 / 50 The form of carbon that conducts electricity is _________ Check 3 / 50 Which of these is not a raw material for the cement manufacture? alumina lime Silicate silica 4 / 50 Which of these is not a group V element? Arsenic Nirogen Calcium Phosphorus 5 / 50 The halogen _______ is solid at room temperature Check 6 / 50 ___________ is obtained when of silicates mainly of sodium and calcium is melted and supercooled Check 7 / 50 Elements having some metallic and nonmetallic properties are called _______ Check 8 / 50 Which of these is not a component of lead-acid battery? lead oxide Tetraoxosulphate(VI) acid lead chloride spongy lead 9 / 50 A derivative of ____________ is used in making photographic plates Check 10 / 50 Nitrogen is obtained commercially from ___________ rock air water vapour coke 11 / 50 Ammonia acts as a Lewis base because it possesses a _________ Check 12 / 50 _____________ is the only liquid halogen. Check 13 / 50 The second most abundant element in the earth’s crust after oxygen is __________ Check 14 / 50 Hydrazine is used as a ________ along with liquid air or oxygen as oxidant. Check 15 / 50 The ‘great balls of carbon’ in which carbon atoms are symmetrically arranged in closed shells are known as __________ Check 16 / 50 Of all halogens, _____________ has the highest ionization energy Check 17 / 50 Which of these is not an interstitial carbide? tungsten carbide Vanadium carbide boron carbide titanium carbide 18 / 50 ___________are the fibrous silicates, having high tensile strength and heat/fire resistance, used as insulators and steam pipe lagging. Check 19 / 50 The element known as ‘super halogen’ is _________ Check 20 / 50 Deficiency of one of these leads to goitre in humans Iodine Bromine Chlorine Flourine 21 / 50 The hybridization of nitrogen in ammonia is ___________ Check 22 / 50 The purest form of silicon dioxide is ___________ silicates silibolite cristobalite rock crystal 23 / 50 One of these is not a form of silica? cristobalite Freons tridymite Flint 24 / 50 Teflon is form from a derivative of------------- Flourine Bromine Iodine Chlorine 25 / 50 Solid Carbondioxide is known as____________ dry ice carbene Teflon hydrocarbon 26 / 50 Silicates are salts of______ tetrachloro silicon silicon tetraoxide Silica gel Crystaamite 27 / 50 Bacteria which convert nitrogen compounds into free nitrogen are known as ___________ bacteria Check 28 / 50 Continuous exchange of nitrogen between the atmosphere and the biosphere is called ___________ Check 29 / 50 When carbon is linked to elements of lower or approximately the same electronegativity,the binary compounds formed are termed hydroxides oxides carbides halides 30 / 50 ____________ has the highest electronegativity value Check 31 / 50 All group V elements except ____________ react with sulphur to form sulphides. Check 32 / 50 Conversion of nitrogen into its compounds is known as _________ Check 33 / 50 The most metallic element in group IV is __________ Check 34 / 50 The group of elements in the periodic table that is associated with semiconductor properties is ___________ Check 35 / 50 Nitriles are oxidized to nitrates by ___________ Check 36 / 50 ____________is a property by virtue of which elements form long chain compounds by single or multiple bonds between atoms of the same element. Check 37 / 50 Which of these is not a carbide? interstitial covalent ionic dative 38 / 50 A derivative of ------------- is used in making photographic plates Iodine Chlorine Bromine Flourine 39 / 50 Of the group IV element, the one that exhibits anomalous behaviour is ___________ Check 40 / 50 Which of these is true of interstitial carbide? they are amorphous compounds they are soluble compounds They are binary compounds they are non stoichiometric compound 41 / 50 The oxide of nitrogen which is colourless and rather unreactive is _________ Check 42 / 50 PVC pipes are manufactured using ____________ Iodine Chlorine Bromine Flourine 43 / 50 Arsenic has a _____________ odour Check 44 / 50 Which of the group V elements give only one oxidation state? phosphorus bismouth nitrogen lead 45 / 50 The molecular formula of hydrazine is ________ Check 46 / 50 The ground state electronic configuration of phosphorus is ___________ Check 47 / 50 Lead dioxide is used as ___________ bleach anti knock dentoator gun powder 48 / 50 Zeolites is used in water as____________ purifiers softener disinfectants oxidants 49 / 50 The heavier elements of group IV functions as ___________ lewis acid Lowry acid Lowry base lewis base 50 / 50 Zeolites are also called ____________ Check Restart quiz Rate this quiz Send feedback
