Entry Test MCQ :: MCAT ECAT Chemistry Paper

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41.

A solution has pH = 0 its H+ ion concentration is

A.	1 x 10-1	B.	1 x 10-14
C.	1 x 10-7	D.	1

42.

Solubility of CaF2 is 2.0x10-4 gdm-3 then Ksp of CaF2 is

A.	4.0 x 10-8	B.	3.2 x 10-11
C.	2.0 x 10-8	D.	4.0 x 10-12

43.

1 mole of electron has mass in microgram

A.	1.008 x 10-3	B.	5.5 x 10-4
C.	1.84 x 10-4	D.	1.673 x 10-3

44.

The unit of molality is

A.	moles dm-3	B.	moles kg-1
C.	gram dm-3	D.	none

45.

The use of antifreeze in the automobile radiator is an important application of

A.	constitutive property	B.	additive property
C.	colligative property	D.	intrinsic property

46.

A solution can be both

A.	dilute and concentrated	B.	dilute and saturated
C.	saturated and unsaturated	D.	saturated and super saturated

47.

At which electrode the reduction of the solution is occurring in Al-Ag cell

A.	A?	B.	Ag
C.	Both	D.	Neither

48.

Consider the following redox reaction. Zn+dil HNO3? Zn (NO3)2 + N2O + H2O The coefficient number of HNO3 in the equation is

A.	6	B.	8
C.	10	D.	4

49.

In which of the following type of reactions energy of reactant is greater than energy of product

A.	endothermic	B.	exothermic
C.	unpredictable	D.	same

50.

Which of the following elements react with steam to produce H2 gas.

A.	Pd	B.	Ni
C.	Sn	D.	All of the above