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Chemistry Quiz 11

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Chemistry Quiz 11

1 / 50

The density of water may be__________________?

2 / 50

In network of silica (SiO2) each silicon atom is surrounded by _____________ atoms of osygen?

3 / 50

Industrial materials and thermal power stations are coated with______________________?

4 / 50

Which catalyst is used in contact process ?

5 / 50

Water absorber used in combustion analysis is___________________?

6 / 50

Oxidation state of an atom represents____________________?

7 / 50

The law of traids is applicable to__________?

8 / 50

Salt bridge transfers_______________?

9 / 50

Give Electronic configuration of Sodium:

10 / 50

Bromine can be liberated from KBr solution by the action of _______________?

11 / 50

The leements in which d or f orbitals are in the process of completion are__________________?

12 / 50

Mostly ionic compound are produced in between elements of_________________?

13 / 50

The composition of brown ring in nitrate test is_________________?

14 / 50

Idea of pH and pOH was put forward by________________?

15 / 50

Which one of the following reactants will be required to form straight chain alcohol by using Grignard reagent________________?

16 / 50

Modern periodic table has been divided in ___________ blocks?

17 / 50

When phenol is heated with concentrated nitric acid the product is________________?

18 / 50

What is the molecular formula for Nitric acid ________ ?

19 / 50

Which of the halogen can displace other three elements ?

20 / 50

The deliquescence is a property in which a solid____________________?

21 / 50

Which of the following is not a use of formaldehyde ?

22 / 50

Crystallization does not involve_______________?

23 / 50

Which one of the following aqueous solutions will be basic ?

24 / 50

Cement is a mixture of so many compounds roasted in rotary kiln. Which substances has greater percentage ?

25 / 50

The magnetic quantum number (QN) has its values determined directly by the value of_______________?

26 / 50

When sulphuric acid is treated with ethanol sulphuric acid behaves like________________?

27 / 50

The number of moles of CO2 which contains 16 g of oxygen is__________________?

28 / 50

If 1/V is plotted on X-axis and pressure on Y-axis at constant temperature what should appear ________________?

29 / 50

Distance at which attractive forces of hydrogen overcome repulsive forces is __________ ?

30 / 50

Rate of enzymatic reaction is directly proportional to the concentration of___________________?

31 / 50

Phosphorous acid upon thermal decomposition yields phosphoric acid and____________________?

32 / 50

Rate of disappearance of reactant is equal to_________________?

33 / 50

The correct electronic configuration of Cu is ___________________?

34 / 50

When toluene reacts with chlorine in sunlight the first major product is__________________?

35 / 50

Pollutants have adverse effect over_________________?

36 / 50

50% inversion of configuration of molecules take place in a___________________?

37 / 50

Colour of fluorescene produced by cathode rays depends upon________________?

38 / 50

Because of its ability to combine with both oxygen and nitrogen aluminium metal is used_____________?

39 / 50

Metallic characters of alkali metals_____________________?

40 / 50

Which statement is incorrect about catalyst___________________?

41 / 50

Which one of the following is most acidic?

42 / 50

Which of following metals can be displaced by all other metals from its solution ?

43 / 50

Boron is non metal while other elements of IIIA group are metals. This is because______________?

44 / 50

The partial pressure exerted by the water vapours is called_______________?

45 / 50

Which is not heterocyclic compound _______________?

46 / 50

When electrons collide with heavy metals than ___________ are produced?

47 / 50

The rate of formation of ozone depends on the flux of:

48 / 50

Right half cell contains _____________ electrode?

49 / 50

Which of the following is an example of liquid in gas solution?

50 / 50

The best method of preparation of alkyl halides is a reaction of alcohol with__________________?

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