Topics	Created On	Clicks	Correct	Forum
	A proven hypothesis is also known as...	09 December 2005	4544	2860
	The internal diameter of a test tube can be measured by using...	09 December 2005	3684	2105
	Which of the following elements is the most powerful oxidizing agent?	09 December 2005	3230	813
	Matter can exist in how many states?	10 December 2005	2770	629
	Which of the following is NOT a characteristic of air?	11 December 2005	2541	1369
	On the Fahrenheit scale, the coldest possible temperature	09 December 2005	1989	622
	Which of the following is NOT a property of nitrogen gas?	11 December 2005	2233	964
	Which of the following processes does NOT use oxygen gas?	11 December 2005	1694	884
	Air balloons arefilled with helium gas rather than with hydrogen gas	11 December 2005	1591	696
	Arsphenamine has a common name "606"	07 December 2005	1699	667
	What is the most abundant type of atom in living things?	07 December 2005	1186	399
	How do geckos stick to walls and ceilings?	07 December 2005	1017	415
	What is "liver of sulphur"?	07 December 2005	1270	376
	What is a doubly magic nucleus?	07 December 2005	1020	444
	Which of the following metals is added to steel in lighter flints?	07 December 2005	986	320
	Chlorine was so named because...	07 December 2005	967	363
	Which of the following elements has the largest atoms?	07 December 2005	918	262
	Oxygen "always" has an oxidation number of -2 except	07 December 2005	843	325
	Which of the halogens is most abundant in nature?	07 December 2005	800	318
	Radioactive element used in household fire detectors	07 December 2005	743	245
	Vapors of flammable organic solvents	07 December 2005	656	374
	Oil of Vitriol	07 December 2005	643	292
	Sulphide mineral breaks down to its oxide and releases a gas	07 December 2005	619	405
	Solar winds are caused by solar...	07 December 2005	631	260
	Which of the following substances burn with red flames?	07 December 2005	518	216
	Haematite is made up of what elements?	07 December 2005	494	234
	Metal sulphide is heated strongly in air	07 December 2005	462	260
	Expansion and contraction	07 December 2005	585	282
	Transfer of heat by convection does not take place in .......	07 December 2005	572	416
	The pressure at the bottom of a lake...	05 December 2005	439	267
	They will hit the Moon’s surface at virtually the same time.	05 December 2005	453	309
	Two 90-decibel sound sources are turned on at the same time	05 December 2005	403	279
	A light bulb is connected with a battery to form a simple circuit	05 December 2005	404	205
	Added to fireworks to make them brilliant red	05 December 2005	370	160
	What is the partial pressure of oxygen?	04 December 2005	305	150
	The rate-determining step in a chemical reaction	04 December 2005	312	148
	Chemical bond in a carbon monoxide molecule	04 December 2005	312	139
	In a sodium chloride lattice...	04 December 2005	270	142
	Oxidation number of chromium in chromyl chloride	04 December 2005	253	148
	A flywheel rotates with constant angular acceleration	01 December 2005	248	82
	Propanone and ethyl-ethanoate	03 December 2005	157	94
	Intermolecular Van der Waals forces	03 December 2005	173	81
	Find the height reached & the speed with which it hits the ground	01 December 2005	140	56
	A ladder is leaning against a rough vertical wall...	01 December 2005	131	70
	A light string is attached at one end to a point on a vertical wall	01 December 2005	118	52
	The block remains stationary.	01 December 2005	101	50
	The magnitude of the resultant is...	01 December 2005	108	68
	Stars vary in colour depending on their...	01 December 2005	212	120
	The hottest planet in the solar system	01 December 2005	278	144
	Asteroids are mostly found between...	01 December 2005	207	150
	Which planet has the largest canyon in the solar system?	01 December 2005	214	117
	Playground slide	28 November 2005	84	44
	The rate of evaporation of a liquid	28 November 2005	94	50
	Total area of the sole of his shoe...	28 November 2005	76	37
	A cannonball has kinetic energy...	28 November 2005	69	37
	A radio station is broadcasting at a frequency of 104.5 MHz	28 November 2005	65	41
	Telescope in normal adjustment	28 November 2005	65	42
	Kinetic theory of gases	28 November 2005	63	23
	Convex mirror better than plane mirror at blind corners	28 November 2005	65	49
	Convert to SI base units.	28 November 2005	67	47
	To prepare a solution of Pb2+ ions, we should use...	28 November 2005	129	79
	Object distance, Image distance & Focal length	28 November 2005	58	32
	Why do synthetic polymers cause environmental pollution?	28 November 2005	128	101
	The temperature of a mixture of ice and water is...	28 November 2005	70	33
	Chemistry is a study of...	28 November 2005	144	119
	Liquid pressure depends on...	28 November 2005	90	36
	Element X	28 November 2005	137	103
	Object thrown off an airplane is descending at terminal velocity	28 November 2005	57	25
	A compound of sulphur & oxygen	28 November 2005	117	96
	Graphing is an effective method of displaying experimental results	28 November 2005	58	40
	What oxide is amphoteric?	28 November 2005	131	95
	Ray of light travelling from air into a medium is refracted	28 November 2005	46	17
	The element that does NOT form a chemical bond	28 November 2005	131	95
	The volume of a gas increases	28 November 2005	44	29
	Electrochemical Series & Displacement reaction	28 November 2005	119	66
	Liquid pressure in hydraulic machines	28 November 2005	48	26
	The acidity of hydrogen bromide	28 November 2005	112	70
	Statue has to be salvaged from a ship wreck.	28 November 2005	34	19
	Copper(II) sulphate can be prepared by adding...	28 November 2005	109	60
	The ticker tape was pulled through a ticker-timer...	28 November 2005	57	28
	Fertiliser can be produced by reacting ammonia with...	28 November 2005	97	42
	Water is added to methanol	28 November 2005	122	76
	Measurement units arranged in descending order	28 November 2005	43	33
	Sodium carbonate is reacted with dilute sulphuric acid	28 November 2005	77	56
	A concave mirror has a curvature radius...	28 November 2005	38	17
	Reacts violently with cold water	28 November 2005	91	73
	The final temperature of the mixture is...	28 November 2005	40	26
	Ions with the same electronic configurations	28 November 2005	83	56
	Great Barrier Reef	28 November 2005	28	13
	The ticker tape is being pulled by a trolley...	28 November 2005	28	18
	Electrolysis of an aqueous potassium bromide solution	28 November 2005	88	56
	Which of the following is a derived unit?	28 November 2005	39	30
	What is the mass of sodium hydroxide	28 November 2005	73	59
	A ray of light strikes a plane mirror and is reflected off it.	28 November 2005	33	18
	Lead(II) nitrate solution reacts with sodium chloride solution	28 November 2005	70	45
	The temperature of a liquid	28 November 2005	35	20
	Chemical X is an acid. Which of the following about X is FALSE?	28 November 2005	77	63
	Which of the following is an electrolyte?	28 November 2005	73	58
	Which metal is soft enough to be cut using a kitchen knife?	28 November 2005	96	66
	The pressure of a gas within a container.	28 November 2005	38	21
	What is the best explanation for the stability of noble gases?	28 November 2005	77	61
	Most unlikely to form a bromide	28 November 2005	72	51
	Determine the change in potential energy	28 November 2005	30	18
	Given an element Y, its relative atomic mass is defined as...	28 November 2005	78	65
	Most suitable measurement unit	28 November 2005	39	21
	Several granules of potassium permanganate...	28 November 2005	64	48
	The following chemicals are natural products EXCEPT...	28 November 2005	66	43
	The horizontal component of a force	27 November 2005	33	15
	The coefficient of friction	27 November 2005	29	13
	Find the point on the beam where a support should be placed	27 November 2005	22	12
	What is the time when the velocity becomes zero?	27 November 2005	24	12
	Find the initial velocity of the train	27 November 2005	22	8
	What is the height of the tower?	27 November 2005	21	3
	Find where the two stones meet?	27 November 2005	20	12
	How long will it take for 50% of the lactose to be hydrolysed?	26 November 2005	59	36
	Resolve a weight in two directions	26 November 2005	20	9
	What force (assume constant) is exerted by the buffer?	25 November 2005	18	8
	What is the time taken to travel a distance of 100 m?	18 November 2005	29	18
	What is the rate when half of A had reacted?	16 October 2005	58	35
	Silver nitrate solution reacting with barium chloride solution.	19 October 2005	60	35
	The relative molecular mass of the acid is...