Find the LCM of  11 and 6 :

Convert 15 % into fraction :

1. 4/30
2. 2/10
3. 3/20
4. 1/12

What is the LCM of 8 and 15 :

1. 120
2. 60
3. 130
4. 140

Find angle x and y :

1. x= 80 , y = 100
2. x = 60, y =70
3. x=80, y=80
4. x=20 , y=100

What is the LC M of 9 and 18:

1. 1
2. 9
3. 18
4. 6

Find the GCF of 9 and 16 :

1. 1
2. 0
3. 9
4. 16

The correct statement about the following disaccharide is:
I)
II)

1. ring (II) is pyranose with glycosidic link    
2. ring (I) is furanose with -glycosidic link    
3. ring (I) is pyranose with -glycosidic link    
4. ring (II) is furanose with -glycosidic link    

A carbonyl compound P, which gives positive iodoform test, undergoes reaction with MeMgBr followed by dehydration to give an olefin Q. Ozonolysis of Q leads to a dicarbonyl compound R, which undergoes intramolecular aldol reaction to give predominantly S.

The structures of the products Q and R, respectively, are:

Consider the following reactions I and II,
I)
II)
Products 'X' and 'Y' are respectively:

1. styphnic acid, picric acid    
2. picric acid, benzoic acid    
3. picric acid, styphnic acid    
4. picric acid, salicylic acid    

In which of the following cases, the nitration will take place at meta-position?
I)
II)
III)
IV)

1. II and IV    
2. I,II and III    
3. I only    
4. II and III    

The correct order of decreasing basicity of the following compounds is:
I)
II)
III)
IV)

1. I>II>III>IV    
2. II>I>III>IV    
3. III>IV>I>II    
4. II>I.IV>III    

Phenol . gives two polymers on condensation with formaldehyde:

X and Y are :

X and Yare:

1. copolymer    
2. addition polymer    
3. thermosetting polymer    
4. homopolymer    

Simplify : 2m-3 =17

1. 9
2. 5
3. 10
4. 7

In the figure is shown Young’s double slit experiment. Q is the position of the first bright fringe on the right side of O. P is the 11^th fringe on the other side, as measured from Q. If the wavelength of the light used is , then will be equal to