Chemistry-
General
Easy
Question
The correct answer is:
Related Questions to study
Chemistry-
Which of the following does not react with NaHSO3 ?
Which of the following does not react with NaHSO3 ?
Chemistry-General
Chemistry-
(A) is:
(A) is:
Chemistry-General
Physics-
Statement- I : The distance covered by a body is given by 
, where the symbols have usual meaning. Statement-II : We add quantities, subtract or equate quantities with the same dimensions
Statement- I : The distance covered by a body is given by , where the symbols have usual meaning. Statement-II : We add quantities, subtract or equate quantities with the same dimensions
Physics-General
Physics-
If a tuning fork of frequency (f0) 340Hz tolerance 
1% is used in resonance column method [v = 2f0 (
)], the first and the second resonance are measured at 
= 24.0 cm and 
= 74.0 cm. The max. permissible error in speed of sound is :
If a tuning fork of frequency (f0) 340Hz tolerance 1% is used in resonance column method [v = 2f0 ()], the first and the second resonance are measured at = 24.0 cm and = 74.0 cm. The max. permissible error in speed of sound is :
Physics-General
Chemistry-
The structure of the major product formed in the following reaction is:
The structure of the major product formed in the following reaction is:
Chemistry-General
Chemistry-
Phenyl isocyanide + Benzyl magnesium bromide 
(A) . The compound (A) is:
Phenyl isocyanide + Benzyl magnesium bromide (A) . The compound (A) is:
Chemistry-General
Chemistry-
Which of the following halides will be most reactive in 
reaction and 
reaction, respectively?
I) 
II) 
III) 
Which of the following halides will be most reactive in reaction and reaction, respectively?
I)
II)
III)
Chemistry-General
Chemistry-
The product is :
The product is :
Chemistry-General
Chemistry-
The major product of the following reaction is
The major product of the following reaction is
Chemistry-General
Chemistry-
(A) would be:
(A) would be:
Chemistry-General
Chemistry-
R
on reaction with O2 gives:
R on reaction with O2 gives:
Chemistry-General
Physics-
In a resonance column method, resonance occurs at two successive level of = 30.7 cm and = 63.2 cm using a tuning fork of f = 512 Hz. What is the maximum error in measuring speed of sound using relations v = f
& = 2 (
In a resonance column method, resonance occurs at two successive level of = 30.7 cm and = 63.2 cm using a tuning fork of f = 512 Hz. What is the maximum error in measuring speed of sound using relations v = f & = 2 (
Physics-General
Physics-
The current voltage relation of diode is given by 
where the applied voltage V is in volts and the temperature T is in degree Kelvin. If a student makes an error measuring 0.01 V while measuring the current of 5 mA at 300 K, what will be the error in the value of current in mA?
The current voltage relation of diode is given by where the applied voltage V is in volts and the temperature T is in degree Kelvin. If a student makes an error measuring 0.01 V while measuring the current of 5 mA at 300 K, what will be the error in the value of current in mA?
Physics-General
Chemistry-
(A) Phenetole on cleavage with HI yields phenol and ethyl iodide.
(R) Phenetole is a mixed aromatic ether.
(A) Phenetole on cleavage with HI yields phenol and ethyl iodide.
(R) Phenetole is a mixed aromatic ether.
Chemistry-General
Physics-
Internal micrometer is a measuring instrument used to measure internal diameter (ID) of a large cylinder bore with high accuracy. Construction is shown in figure. There is one fixed rod B (to the right in figure) and one moving rod A (to the left in figure). It is based on the principle of advancement of a screw when it is rotated in a nut with internal threads. Main scale reading can be directly seen on the hub which is fixed with respect to rod B. When the cap is rotated, rod A moves in or out depending on direction of rotation. The circular scale reading is seen by checking which division of circular scale coincides with the reference line.
This is to be multiplied by LC to get circular scale reading.
Least count = value of 1 circular scale division
Length of rod A is chosen to match the ID (PQ) to be measured. Zero error is checked by taking reading between standard blocks fixed at nominal value of ID to be measured. Zero error is positive if cap end is on the right side of the main scale and negative it is on the left side. During zero setting of the above instrument, the end of the cap is on left side of the zero of main scale (i.e. zero of main scale is not visible) and 41st division of circular scale coincides with the reference line, the zero error is-
Internal micrometer is a measuring instrument used to measure internal diameter (ID) of a large cylinder bore with high accuracy. Construction is shown in figure. There is one fixed rod B (to the right in figure) and one moving rod A (to the left in figure). It is based on the principle of advancement of a screw when it is rotated in a nut with internal threads. Main scale reading can be directly seen on the hub which is fixed with respect to rod B. When the cap is rotated, rod A moves in or out depending on direction of rotation. The circular scale reading is seen by checking which division of circular scale coincides with the reference line.
This is to be multiplied by LC to get circular scale reading.
Least count = value of 1 circular scale division
Length of rod A is chosen to match the ID (PQ) to be measured. Zero error is checked by taking reading between standard blocks fixed at nominal value of ID to be measured. Zero error is positive if cap end is on the right side of the main scale and negative it is on the left side. During zero setting of the above instrument, the end of the cap is on left side of the zero of main scale (i.e. zero of main scale is not visible) and 41st division of circular scale coincides with the reference line, the zero error is-
Physics-General
