$ cat pm1208450.pl
use strict;
use warnings;
use Devel::Peek;

my $a = chr(0xb0);
my $b = chr(0x2032);

Dump($a);
Dump($b);

# Combining a byte string and a unicode string converts to unicode
my $c = $a . $b;
Dump($c);

$ perl pm1208450.pl
SV = PV(0x60002c270) at 0x600079168
  REFCNT = 1
  FLAGS = (POK,pPOK)
  PV = 0x600069e70 "\260"\0
  CUR = 1
  LEN = 10
SV = PV(0x60002c310) at 0x600079048
  REFCNT = 1
  FLAGS = (POK,pPOK,UTF8)
  PV = 0x60008f670 "\342\200\262"\0 [UTF8 "\x{2032}"]
  CUR = 3
  LEN = 10
SV = PV(0x60002c340) at 0x6000ed1c8
  REFCNT = 1
  FLAGS = (POK,pPOK,UTF8)
  PV = 0x600093a10 "\302\260\342\200\262"\0 [UTF8 "\x{b0}\x{2032}"]
  CUR = 5
  LEN = 10