Physics-
General
Easy
Question
The locus of a projectile relative to another projectile is a
- straight line
- circle
- ellipse
- parabola
The correct answer is: straight line
Related Questions to study
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In specific resistance measurement of a wire using a meter bridge, the key k in the main circuit is kept open when we are not taking readings. The reason is
In specific resistance measurement of a wire using a meter bridge, the key k in the main circuit is kept open when we are not taking readings. The reason is
Physics-General
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If length of pendulum is increased by 2%. The time period will
If length of pendulum is increased by 2%. The time period will
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is the dimensional formula of
is the dimensional formula of
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A cube has side 1.2 ´ 10-2 m. Its volume will be recorded as
A cube has side 1.2 ´ 10-2 m. Its volume will be recorded as
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The iron manufactured by pudding process is called as
The iron manufactured by pudding process is called as
Chemistry-General
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The process of converting hydrated alumina into anhydrous alumina is called
The process of converting hydrated alumina into anhydrous alumina is called
Chemistry-General
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The material used in semiconductors
The material used in semiconductors
Chemistry-General
Chemistry-
The D, L system of relative configuration is not 100% correct, and hence R, S system was adopted as a defect proof, absolute configuration. The R, S system involves the following steps:
Step I: The four atoms or groups attached to the chiral carbon atom are assigned a sequence of priorities according to sequence rules.
Step II: The arrangement of these four atoms is observed by drawing a curved arrow from the atom with the highest priority (1) to the atom with next highest (2) and if the direction of this arrow is clockwise it indicates R configuration, while the anticlockwise direction from group (1) to group (2) indicates S configuration. However, this convention is true only when the atom with the lowest priority (4) is present on the vertical bond, in case of Fischer projection. In case, the atom (4) lies on the horizontal bond opposite configuration is assigned.
Now observe the monochlorination of 2-chlorobutane.
Priority order of some groups:
Cl > CH2CH3 > CH3 > H; CH2Cl > CH2CH3, CH2CH2Cl > CH3
Which of the above structures can exit as enantiomers?
The D, L system of relative configuration is not 100% correct, and hence R, S system was adopted as a defect proof, absolute configuration. The R, S system involves the following steps:
Step I: The four atoms or groups attached to the chiral carbon atom are assigned a sequence of priorities according to sequence rules.
Step II: The arrangement of these four atoms is observed by drawing a curved arrow from the atom with the highest priority (1) to the atom with next highest (2) and if the direction of this arrow is clockwise it indicates R configuration, while the anticlockwise direction from group (1) to group (2) indicates S configuration. However, this convention is true only when the atom with the lowest priority (4) is present on the vertical bond, in case of Fischer projection. In case, the atom (4) lies on the horizontal bond opposite configuration is assigned.
Now observe the monochlorination of 2-chlorobutane.
Priority order of some groups:
Cl > CH2CH3 > CH3 > H; CH2Cl > CH2CH3, CH2CH2Cl > CH3
Which of the above structures can exit as enantiomers?
Chemistry-General
Chemistry-
(A) The hydrolysis of methyl acetate by dil HCI is a pseudo first order reaction.
(R) HCI acts as a catalyst for the hydrolysis.
(A) The hydrolysis of methyl acetate by dil HCI is a pseudo first order reaction.
(R) HCI acts as a catalyst for the hydrolysis.
Chemistry-General
Chemistry-
(A) Positive catalysts increase the rate of reaction.
(R) Catalysts decrease the value of 
(A) Positive catalysts increase the rate of reaction.
(R) Catalysts decrease the value of
Chemistry-General
Chemistry-
The rate constant of a reaction does not depend upon:
The rate constant of a reaction does not depend upon:
Chemistry-General
Chemistry-
A plot of log (a - x) against time' t' is a straight line. This indicates that the reaction is of:
A plot of log (a - x) against time' t' is a straight line. This indicates that the reaction is of:
Chemistry-General
Chemistry-
Cellulose on hydrolysis yields
Cellulose on hydrolysis yields
Chemistry-General
Chemistry-
Teflon is an example of:
Teflon is an example of:
Chemistry-General
Chemistry-
Two Ruff degradation of an aldohexose gives an
Two Ruff degradation of an aldohexose gives an
Chemistry-General
