29Ans 1.
in β+ decay proton is converted into neutron and in β- decay neutron is converted into proton..
A→ q,s
B→ s,t
C→ p,t
D→ r,t
1) Confusing matrix match:
A) Alpha decay p)Z will increase
B) beta + decay q)Z and A will decrease
C) beta – decay r)Z remains same
D) gamma emission s)Z will decrease
t)A remains same
2) what will be the products of reaction between ammonia and NaOCl on heating.
3) True or false-
Rubber with low elastic hysteresis is very useful for absorbing vibrations,such as in engine mounts and shock absorber bushings from cars.
4) which of the following are true regarding (ICl3)2?
a) all I-Cl bonds are identical
b) in liquid state it conducts electricity
c) its monomer doesn’t exist
d)has planar structure
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5 Answers
29
1yes govind i had done the same.
for 1 A,ans given is only q but clearly s is also right.
strange indeed!
plz try other ques.
1strangely 3 was given as incorrect to b selected from 4 options. i too thought it was right.
anyone can answer 2,4?
13 is false more hysteresis, more energy it can store, more good shock absorber
about rest q the ans r given wrong in the fiitjee soln
plenty of mistakes in the paper