1
NEET 2018
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following carbocations is expected to be most stable?
A
NEET 2018 Chemistry - Some Basic Concepts of Organic Chemistry Question 37 English Option 1
B
NEET 2018 Chemistry - Some Basic Concepts of Organic Chemistry Question 37 English Option 2
C
NEET 2018 Chemistry - Some Basic Concepts of Organic Chemistry Question 37 English Option 3
D
NEET 2018 Chemistry - Some Basic Concepts of Organic Chemistry Question 37 English Option 4
2
NEET 2018
MCQ (Single Correct Answer)
+4
-1
Change Language
A mixture of 2.3 g formic acid and 4.5 g oxalic acid is treated with conc. H2SO4 . The evolved gaseous mixture is passed through KOH pellets. Weight (in g) of the remaining product at STP will be
A
1.4
B
3.0
C
2.8
D
4.4
3
NEET 2018
MCQ (Single Correct Answer)
+4
-1
Change Language
A student measured the diameter of a small steel ball using a screw gauge of least count 0.001 cm. The main scale reading is 5 mm and zero of circular scale division coincides with 25 divisions above the reference level. If screw gauge has a zero error of –0.004 cm, the correct diameter of the ball is
A
0.521 cm
B
0.525 cm
C
0.053 cm
D
0.529 cm
4
NEET 2018
MCQ (Single Correct Answer)
+4
-1
Change Language
An object is placed at a distance of 40 cm from a concave mirror of focal length 15 cm. If the object is displaced through a distance of 20 cm towards the mirror, the displacement of the image will be
A
30 cm away from the mirror
B
36 cm away from the mirror
C
30 cm towards the mirror
D
36 cm towards the mirror
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