1.
“Going by the _________ that many hands make light work, the school _______ involved all the students in the task.” The words that best fill the blanks in the above sentence are
2.
“Her _______ should not be confused with miserliness; she is ever willing to assist those in need.” The word that best fills the blank in the above sentence is
3.
Seven machines take 7 minutes to make 7 identical toys. At the same rate, how many minutes would it take for 100 machines to make 100 toys?
4.
A rectangle becomes a square when its length and breadth are reduced by 10 m and 5 m,2 of area. What is
5.
A number consists of two digits. The sum of the digits is 9. If 45 is subtracted from the number, its digits are interchanged. What is the number?
6.
For integers a, b and c, what would be the minimum and maximum values respectively of a + b + c if log |a| + log |b| + log |c| = 0?
7.
Given that a and b are integers and a + a2 b3
8.
From the time the front of a train enters a platform, it takes 25 seconds for the back of the train to leave the platform, while travelling at a constant speed of 54 km/h. At the same speed, it takes 14 seconds to pass a man running at 9 km/h in the same direction as the train. What is the length of the train and that of the platform in meters, respectively?
9.
Consider the following three statements:
(i) Some roses are red.
10.
For the complete combustion of graphite and diamond in oxygen individually, the standardo 298 ) values are -393.5 kJ mol-1 and -395.4 kJ mol-1 , respectively.o 298 for the conversion of graphite into diamond is
1 out of 2
11.
For a 4s orbital of hydrogen atom, the magnetic quantum number (ml ) is
12.
Hybridization of xenon in XeF2 is
14.
Among B-H, C-H, N-H and Si-H bonds in BH3 , CH4 , NH3 and SiH4 B, respectively, theINCORRECTLY is
15.
Among the following statements,
(i) [NiCl4 ]2- (atomic number of Ni = 28) is diamagnetic2 {P(C6 H5 )3 }2 ] has two geometrical isomers2 O is greater than that in H2 S,CORRECT one is
16.
In [Mn(H2 O)6 ]2+ (atomic number of Mn = 25), the d-d transitions according to crystal fieldtheory (CFT) are
17.
The standard reduction potential (Eo ) for the conversion of Cr2 O7 2- to Cr3+ at 25 o C in an2 O7 2- and Cr3+ are-4 M and 1.0 × 10-3 M, respectively. Then the potential of this half-cell reaction isGiven : Faraday constant = 96500 C mol-1 , Gas constant R = 8.314 J K-1 mol-1 )
2 out of 2
