Chemistry Quiz 18

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Chemistry Quiz 18

1 / 50

Chlorination of water may be harmful if the water contains_________________?

2 / 50

Bucky balls is an allotropic from of__________________?

3 / 50

R-Mg-Br is called___________________?

4 / 50

Permanent hardness of water due to sulphate of metals can be destroyed by the use of ________ ?

5 / 50

The molal boiling point constant is the ration of the elevation of boiling point to____________________?

6 / 50

Halides in which halogen atoms act as a bridge between two atoms of the other element are called___________________?

7 / 50

Solution having the property of a very little change in pH on adding a small amount of strong acid or base is called________________?

8 / 50

In an electrolytic cell current flows ?

9 / 50

Which of the following is not a heavy industry ?

10 / 50

The metal which is used in thermite process because of its activity is____________________?

11 / 50

The rectified spirit is________________?

12 / 50

Raney nickel is prepared from ______________________ by treating with caustic soda?

13 / 50

What is the molecular weight of Ammonia (NH3) ________ ?

14 / 50

The quantity of heat required to convert one mole of liquid into its vapours at its boiling point is called molar heat of__________________?

15 / 50

Chemical equilibrium state is_______________?

16 / 50

By the addition of base in waterpH will be_______________?

17 / 50

Molecular orbitals are filled according to _________________?

18 / 50

SN2 reaction can be best carried out with__________________?

19 / 50

Reactivity due to pi-electrons is present in_________________?

20 / 50

The process in which solid changes directly into vapours without passing through liquid state?

21 / 50

The number of d-electrons in Fe2+ (Z = 26) is not equal to that of____________?

22 / 50

The organic acid that does not has COOH group is___________________?

23 / 50

Vapour pressure of water at 100?C is___________________?

24 / 50

Bohrs model is contradicted by__________________?

25 / 50

Which of the following statements is true about plasma________________?

26 / 50

Which element has same isotopes like palladium___________________?

27 / 50

For a gas where volume and pressures are 1dm3 and 2 atm respectively what should be its new volume when pressure is increased to 6 atm at constant temperature ?

28 / 50

The properties of an element mosly corresponds to that isotope which has greater_________________?

29 / 50

Diameter of an atom is in the order of________________?

30 / 50

Ethanol can be converted into ethanoic acid by_________________?

31 / 50

Phosphorus helps in the growth of_________________?

32 / 50

A helium nucleus comprising of two protons and two neutrons with a charge of 2e is _________ ?

33 / 50

The common thing in phthalic acid and oxalic acid is that both are_________________?

34 / 50

Boron in soil has been considered micronutrient for_________________?

35 / 50

What is the molecular formula of Benzenetriozonide ?

36 / 50

Angle of deflection was studied by________________?

37 / 50

During which process empty spaces between particles become minimum ?

38 / 50

Higher value of electron affinity means__________________?

39 / 50

Compound containing benzene ring in their structure are __________________?

40 / 50

The stationary and mobile phases in paper chromatography are____________?

41 / 50

The science of fermentation is called _______ ?

42 / 50

The major steps involved in complete quantitative analysis are _________________?

43 / 50

As a substance moves from a solid to a liquid all of the following changes occur except ?

44 / 50

Carbohydrates are polyhydroxy compounds of___________________?

45 / 50

Which of the following statements is incorrect about fluorine_______________?

46 / 50

For the reaction 2HI ____________> H2+ I2

47 / 50

The solvent or mixture of solvents used for separation of compounds is called____________________?

48 / 50

Which one is a conductor but is not malleable ?

49 / 50

A real gas obeying vander waals equation will resemble the ideal gas if_______________________?

50 / 50

The term internal salt refers to_____________________?

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